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550 lines
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<!doctype html>
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<html lang=en id=errata>
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<meta charset=utf-8>
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<title>OpenBSD 6.6 Errata</title>
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<meta name="description" content="the OpenBSD errata page">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<link rel="stylesheet" type="text/css" href="openbsd.css">
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IMPORTANT REMINDER
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IF YOU ADD A NEW ERRATUM, MAIL THE PATCH TO TECH AND ANNOUNCE
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<h2 id=OpenBSD>
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<a href="index.html">
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<i>Open</i><b>BSD</b></a>
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6.6 Errata
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</h2>
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<hr>
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For errata on a certain release, click below:<br>
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<a href="errata20.html">2.0</a>,
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<a href="errata21.html">2.1</a>,
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<a href="errata22.html">2.2</a>,
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<a href="errata23.html">2.3</a>,
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<a href="errata24.html">2.4</a>,
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<a href="errata25.html">2.5</a>,
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<a href="errata26.html">2.6</a>,
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<a href="errata27.html">2.7</a>,
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<a href="errata28.html">2.8</a>,
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<a href="errata29.html">2.9</a>,
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<a href="errata30.html">3.0</a>,
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<a href="errata31.html">3.1</a>,
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<a href="errata32.html">3.2</a>,
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<a href="errata33.html">3.3</a>,
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<a href="errata34.html">3.4</a>,
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<a href="errata35.html">3.5</a>,
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<br>
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<a href="errata36.html">3.6</a>,
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<a href="errata37.html">3.7</a>,
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<a href="errata38.html">3.8</a>,
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<a href="errata39.html">3.9</a>,
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<a href="errata40.html">4.0</a>,
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<a href="errata41.html">4.1</a>,
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<a href="errata42.html">4.2</a>,
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<a href="errata43.html">4.3</a>,
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<a href="errata44.html">4.4</a>,
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<a href="errata45.html">4.5</a>,
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<a href="errata46.html">4.6</a>,
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<a href="errata47.html">4.7</a>,
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<a href="errata48.html">4.8</a>,
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<a href="errata49.html">4.9</a>,
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<a href="errata50.html">5.0</a>,
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<a href="errata51.html">5.1</a>,
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<br>
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<a href="errata52.html">5.2</a>,
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<a href="errata53.html">5.3</a>,
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<a href="errata54.html">5.4</a>,
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<a href="errata55.html">5.5</a>,
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<a href="errata56.html">5.6</a>,
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<a href="errata57.html">5.7</a>,
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<a href="errata58.html">5.8</a>,
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<a href="errata59.html">5.9</a>,
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<a href="errata60.html">6.0</a>,
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<a href="errata61.html">6.1</a>,
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<a href="errata62.html">6.2</a>,
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<a href="errata63.html">6.3</a>,
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<a href="errata64.html">6.4</a>,
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<a href="errata65.html">6.5</a>,
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<a href="errata67.html">6.7</a>,
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<a href="errata68.html">6.8</a>,
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<br>
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<a href="errata69.html">6.9</a>,
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<a href="errata70.html">7.0</a>,
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<a href="errata71.html">7.1</a>,
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<a href="errata72.html">7.2</a>,
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<a href="errata73.html">7.3</a>.
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<hr>
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<p>
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Patches for the OpenBSD base system are distributed as unified diffs.
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Each patch is cryptographically signed with the
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<a href="https://man.openbsd.org/OpenBSD-6.6/signify.1">signify(1)</a> tool and contains
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usage instructions.
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All the following patches are also available in one
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6.tar.gz">tar.gz file</a>
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for convenience.
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<p>
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Alternatively, the <a href="https://man.openbsd.org/syspatch">syspatch(8)</a>
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utility can be used to apply binary updates on the following architectures:
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amd64, i386, arm64.
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<p>
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Patches for supported releases are also incorporated into the
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<a href="stable.html">-stable branch</a>.
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<hr>
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<ul>
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<li id="p001_bpf">
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<strong>001: RELIABILITY FIX: October 28, 2019</strong>
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<i>All architectures</i>
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<br>
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bpf(4) has a race condition during device removal.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/001_bpf.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p002_ber">
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<strong>002: RELIABILITY FIX: October 28, 2019</strong>
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<i>All architectures</i>
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<br>
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Various third party applications may crash due to symbol collision.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/002_ber.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p003_bgpd">
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<strong>003: RELIABILITY FIX: October 31, 2019</strong>
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<i>All architectures</i>
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<br>
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bgpd(8) can crash on nexthop changes or during startup in certain
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configurations.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/003_bgpd.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p004_net80211">
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<strong>004: RELIABILITY FIX: November 16, 2019</strong>
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<i>All architectures</i>
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<br>
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The kernel could crash due to a NULL pointer dereference in net80211.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/004_net80211.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p005_sysupgrade">
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<strong>005: RELIABILITY FIX: November 16, 2019</strong>
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<i>All architectures</i>
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<br>
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A new kernel may require newer firmware images when using sysupgrade.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/005_sysupgrade.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p006_ifioctl">
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<strong>006: SECURITY FIX: November 16, 2019</strong>
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<i>All architectures</i>
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<br>
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A regular user could change some network interface parameters due
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to missing checks in the ioctl(2) system call.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/006_ifioctl.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p007_inteldrm">
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<strong>007: SECURITY FIX: November 22, 2019</strong>
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<i>i386 and amd64</i>
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<br>
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A local user could cause the system to hang by reading specific
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registers when Intel Gen8/Gen9 graphics hardware is in a low power state.
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A local user could perform writes to memory that should be blocked with
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Intel Gen9 graphics hardware.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/007_inteldrm.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p008_mesa">
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<strong>008: SECURITY FIX: November 22, 2019</strong>
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<i>All architectures</i>
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<br>
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Shared memory regions used by some Mesa drivers had permissions which
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allowed others to access that memory.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/008_mesa.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p009_mesaxlock">
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<strong>009: SECURITY FIX: December 4, 2019</strong>
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<i>All architectures</i>
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<br>
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Environment-provided paths are used for dlopen() in mesa, resulting in
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escalation to the auth group in xlock(1).
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/009_mesaxlock.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p010_libcauth">
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<strong>010: SECURITY FIX: December 4, 2019</strong>
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<i>All architectures</i>
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<br>
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libc's authentication layer performed insufficient username validation.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/010_libcauth.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p011_xenodm">
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<strong>011: SECURITY FIX: December 4, 2019</strong>
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<i>All architectures</i>
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<br>
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xenodm uses the libc authentication layer incorrectly.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/011_xenodm.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p012_suauth">
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<strong>012: SECURITY FIX: December 8, 2019</strong>
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<i>All architectures</i>
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<br>
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A user can log in with a different user's login class.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/012_suauth.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p013_ldso">
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<strong>013: SECURITY FIX: December 11, 2019</strong>
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<i>All architectures</i>
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<br>
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ld.so may fail to remove the LD_LIBRARY_PATH environment variable for
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set-user-ID and set-group-ID executables in low memory conditions.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/013_ldso.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p014_eret">
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<strong>014: SECURITY FIX: December 18, 2019</strong>
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<i>arm64</i>
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<br>
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ARM64 CPUs speculatively execute instructions after ERET.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/014_eret.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p015_ftp">
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<strong>015: SECURITY FIX: December 20, 2019</strong>
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<i>All architectures</i>
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<br>
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ftp(1) will follow remote redirects to local files.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/015_ftp.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p016_ripd">
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<strong>016: SECURITY FIX: December 20, 2019</strong>
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<i>All architectures</i>
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<br>
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ripd(8) fails to validate authentication lengths.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/016_ripd.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p017_inteldrmctx">
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<strong>017: SECURITY FIX: January 17, 2020</strong>
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<i>i386 and amd64</i>
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<br>
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Execution Unit state was not cleared on context switch with Intel Gen9
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graphics hardware.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/017_inteldrmctx.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p018_smtpd_tls">
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<strong>018: RELIABILITY FIX: January 30, 2020</strong>
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<i>All architectures</i>
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<br>
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smtpd can crash on opportunistic TLS downgrade, causing a denial of service.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/018_smtpd_tls.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p019_smtpd_exec">
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<strong>019: SECURITY FIX: January 30, 2020</strong>
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<i>All architectures</i>
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<br>
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An incorrect check allows an attacker to trick mbox delivery into executing
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arbitrary commands as root and lmtp delivery into executing arbitrary commands
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as an unprivileged user.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/019_smtpd_exec.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p020_vmm_pvclock">
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<strong>020: SECURITY FIX: February 17, 2020</strong>
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<i>amd64</i>
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<br>
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A missing range check in the vmm pvclock allows a guest to write
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to host memory.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/020_vmm_pvclock.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p021_smtpd_envelope">
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<strong>021: SECURITY FIX: February 24, 2020</strong>
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<i>All architectures</i>
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<br>
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An out of bounds read in smtpd allows an attacker to inject arbitrary
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commands into the envelope file which are then executed as root.
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Separately, missing privilege revocation in smtpctl allows arbitrary
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commands to be run with the _smtpq group.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/021_smtpd_envelope.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p022_sysctl">
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<strong>022: RELIABILITY FIX: March 10, 2020</strong>
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<i>All architectures</i>
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<br>
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Missing input validation in sysctl(2) can be used to crash the kernel.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/022_sysctl.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p023_sosplice">
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<strong>023: RELIABILITY FIX: March 13, 2020</strong>
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<i>All architectures</i>
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<br>
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Local outbound UDP broadcast or multicast packets sent by a spliced
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socket can crash the kernel.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/023_sosplice.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p024_dhcpd">
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<strong>024: SECURITY FIX: April 7, 2020</strong>
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<i>All architectures</i>
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<br>
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dhcpd could reference freed memory after releasing a lease with an
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unusually long uid.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/024_dhcpd.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p025_drm">
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<strong>025: SECURITY FIX: April 19, 2020</strong>
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<i>i386, amd64, arm64, loongson, macppc, sparc64</i>
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<br>
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There was an incorrect test for root in the DRM Linux compatibility code.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/025_drm.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p026_ospfd_lsa">
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<strong>026: RELIABILITY FIX: May 10, 2020</strong>
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<i>All architectures</i>
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<br>
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ospfd could generate corrupt OSPF Router (Type 1) LSAs in certain situations.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/026_ospfd_lsa.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p027_wscons">
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<strong>027: SECURITY FIX: May 13, 2020</strong>
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<i>All architectures</i>
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<br>
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An out-of-bounds index access in wscons(4) can cause a kernel crash.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/027_wscons.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p028_unbound">
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<strong>028: SECURITY FIX: May 22, 2020</strong>
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<i>All architectures</i>
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<br>
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Specially crafted queries may crash unbound and unwind.
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Both can be tricked into amplifying an incoming query.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/028_unbound.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p029_perl">
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<strong>029: SECURITY FIX: June 1, 2020</strong>
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<i>All architectures</i>
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<br>
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Several problems in Perl's regular expression compiler could lead to
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corruption of the intermediate language state of a compiled regular
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expression.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/029_perl.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p030_hid">
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<strong>030: SECURITY FIX: June 5, 2020</strong>
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<i>All architectures</i>
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<br>
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Malicious HID descriptors could be misparsed.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/030_hid.patch.sig">
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A source code patch exists which remedies this problem.</a>
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<p>
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<li id="p031_asr">
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<strong>031: RELIABILITY FIX: June 8, 2020</strong>
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<i>All architectures</i>
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<br>
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libc's resolver could get into a corrupted state.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/031_asr.patch.sig">
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A source code patch exists which remedies this problem.</a>
|
|
<p>
|
|
|
|
<li id="p032_x509">
|
|
<strong>032: RELIABILITY FIX: June 11, 2020</strong>
|
|
<i>All architectures</i>
|
|
<br>
|
|
libcrypto may fail to build a valid certificate chain due to
|
|
expired untrusted issuer certificates.
|
|
<br>
|
|
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/032_x509.patch.sig">
|
|
A source code patch exists which remedies this problem.</a>
|
|
<p>
|
|
|
|
<li id="p033_shmget">
|
|
<strong>033: SECURITY FIX: July 9, 2020</strong>
|
|
<i>All architectures</i>
|
|
<br>
|
|
shmget IPC_STAT leaked some kernel data.
|
|
<br>
|
|
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/033_shmget.patch.sig">
|
|
A source code patch exists which remedies this problem.</a>
|
|
<p>
|
|
|
|
<li id="p034_tty">
|
|
<strong>034: RELIABILITY FIX: July 16, 2020</strong>
|
|
<i>All architectures</i>
|
|
<br>
|
|
tty subsystem abuse can impact performance badly.
|
|
<br>
|
|
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/034_tty.patch.sig">
|
|
A source code patch exists which remedies this problem.</a>
|
|
<p>
|
|
|
|
<li id="p035_tty">
|
|
<strong>035: RELIABILITY FIX: July 22, 2020</strong>
|
|
<i>All architectures</i>
|
|
<br>
|
|
Only pty devices need reprint delays.
|
|
<br>
|
|
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/035_tty.patch.sig">
|
|
A source code patch exists which remedies this problem.</a>
|
|
<p>
|
|
|
|
<li id="p036_iked">
|
|
<strong>036: SECURITY FIX: July 27, 2020</strong>
|
|
<i>All architectures</i>
|
|
<br>
|
|
In iked, incorrect use of EVP_PKEY_cmp allows an authentication bypass.
|
|
<br>
|
|
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/036_iked.patch.sig">
|
|
A source code patch exists which remedies this problem.</a>
|
|
<p>
|
|
|
|
<li id="p037_ximcp">
|
|
<strong>037: SECURITY FIX: July 31, 2020</strong>
|
|
<i>All architectures</i>
|
|
<br>
|
|
Malformed messages can cause heap corruption in the X Input Method
|
|
client implementation in libX11.
|
|
<br>
|
|
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/037_ximcp.patch.sig">
|
|
A source code patch exists which remedies this problem.</a>
|
|
<p>
|
|
|
|
<li id="p038_dix">
|
|
<strong>038: SECURITY FIX: July 31, 2020</strong>
|
|
<i>All architectures</i>
|
|
<br>
|
|
Pixmaps inside the xserver were an info leak.
|
|
<br>
|
|
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/038_dix.patch.sig">
|
|
A source code patch exists which remedies this problem.</a>
|
|
<p>
|
|
|
|
<li id="p039_ximcp">
|
|
<strong>039: RELIABILITY FIX: August 7, 2020</strong>
|
|
<i>All architectures</i>
|
|
<br>
|
|
The recent security errata 037 broke X11 input methods.
|
|
<br>
|
|
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/039_ximcp.patch.sig">
|
|
A source code patch exists which remedies this problem.</a>
|
|
<p>
|
|
|
|
<li id="p040_xinitom">
|
|
<strong>040: SECURITY FIX: August 25, 2020</strong>
|
|
<i>All architectures</i>
|
|
<br>
|
|
An integer overflow in libX11 could lead to a double free.
|
|
Additionally fix a regression in ximcp.
|
|
<br>
|
|
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/040_xinitom.patch.sig">
|
|
A source code patch exists which remedies this problem.</a>
|
|
<p>
|
|
|
|
<li id="p041_xserverlen">
|
|
<strong>041: SECURITY FIX: August 25, 2020</strong>
|
|
<i>All architectures</i>
|
|
<br>
|
|
Various X server extensions had deficient input validation.
|
|
<br>
|
|
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/041_xserverlen.patch.sig">
|
|
A source code patch exists which remedies this problem.</a>
|
|
<p>
|
|
|
|
<li id="p042_amdgpu">
|
|
<strong>042: SECURITY FIX: September 5, 2020</strong>
|
|
<i>amd64, arm64</i>
|
|
<br>
|
|
A buffer overflow was discovered in an amdgpu ioctl.
|
|
<br>
|
|
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/042_amdgpu.patch.sig">
|
|
A source code patch exists which remedies this problem.</a>
|
|
<p>
|
|
|
|
</ul>
|
|
|
|
<hr>
|