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307 lines
11 KiB
HTML
<!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 4.5 Errata</title>
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<meta name="description" content="the OpenBSD CD 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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<link rel="canonical" href="https://www.openbsd.org/errata45.html">
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<!--
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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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-->
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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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4.5 Errata
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</h2>
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<hr>
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<a href=stable.html>For OpenBSD patch branch information, please refer here.</a><br>
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<br>
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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="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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<a href="errata52.html">5.2</a>,
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<br>
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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="errata66.html">6.6</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 contains 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/4.5.tar.gz">tar.gz file</a>
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for convenience.
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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_openssl">
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<strong>001: RELIABILITY FIX: April 8, 2009</strong>
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<i>All architectures</i><br>
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The OpenSSL ASN.1 handling code could be forced to perform invalid memory
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accesses through the use of certain invalid strings
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(<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0590">CVE-2009-0590</a>)
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or under certain error conditions triggerable by invalid ASN.1 structures
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(<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0789">CVE-2009-0789</a>).
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These vulnerabilities could be exploited to achieve a
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denial-of-service. A more detailed description of these problems is available
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in the
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<a href="http://www.openssl.org/news/secadv_20090325.txt">OpenSSL security advisory</a>, but note that the other issue described there "Incorrect Error
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Checking During CMS verification" relates to code not enabled in OpenBSD.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/4.5/common/001_openssl.patch">
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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_pf">
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<strong>002: RELIABILITY FIX: April 11, 2009</strong>
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<i>All architectures</i><br>
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When pf attempts to perform translation on a specially crafted IP datagram,
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a null pointer dereference will occur, resulting in a kernel panic.
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In certain configurations this may be triggered by a remote attacker.
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<br>
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Restricting translation rules to protocols that are specific to the IP version
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in use, is an effective workaround until the patch can be installed. As an
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example, for IPv4 nat/binat/rdr rules you can use:
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<pre>
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nat/rdr ... inet proto { tcp udp icmp } ...
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</pre>
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Or for IPv6 nat/binat/rdr rules you can use:
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<pre>
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nat/rdr ... inet6 proto { tcp udp icmp6 } ...
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</pre>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/4.5/common/002_pf.patch">
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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_bus_dma">
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<strong>003: RELIABILITY FIX: April 24, 2009</strong>
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<i>i386 only</i><br>
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When DMA'able memory is mapped by device drivers, the
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mapping flags and protection are partially uninitialized.
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Depending on the calling context, this may cause devices to misbehave, like
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<a href="https://man.openbsd.org/OpenBSD-4.5/audio.4">audio(4)</a>
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to stutter, but other anomalies might be observed for other
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device types.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/4.5/i386/003_bus_dma.patch">
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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_aucat">
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<strong>004: RELIABILITY FIX: April 24, 2009</strong>
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<i>All architectures</i><br>
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In server mode when in full-duplex mode (the default)
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<a href="https://man.openbsd.org/OpenBSD-4.5/aucat.1">aucat(1)</a>
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will send each synchronization message twice, causing client applications
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to think that buffer underruns are occurring. Depending on the
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application, this may cause the sound to stutter.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/4.5/common/004_aucat.patch">
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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_audio">
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<strong>005: RELIABILITY FIX: April 24, 2009</strong>
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<i>All architectures</i><br>
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On very high system load, an audio interrupt may occur while the
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audio process is filling audio ring buffers. This triggers bogus
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(and useless) correction code in the
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<a href="https://man.openbsd.org/OpenBSD-4.5/audio.4">audio(4)</a>
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driver causing the audio application to go out of sync, and in turn causing
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continuous stuttering until the application is restarted.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/4.5/common/005_audio.patch">
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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_perl">
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<strong>006: RELIABILITY FIX: June 24, 2009</strong>
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<i>All architectures</i><br>
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An off-by-one error in the inflate function in Zlib.xs in the
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Compress::Raw::Zlib perl module before 2.017 (<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1391">CVE-2009-1391</a>),
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as used in AMaViS, SpamAssassin, and possibly other products,
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allows context-dependent attackers to cause a denial of service
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(hang or crash) via a crafted zlib compressed stream that
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triggers a heap-based buffer overflow.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/4.5/common/006_perl_zlib.patch">
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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_bind">
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<strong>007: RELIABILITY FIX: July 29, 2009</strong>
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<i>All architectures</i><br>
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A vulnerability has been found in BIND's named server
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(<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0696">CVE-2009-0696</a>).
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An attacker could crash a server with a specially crafted dynamic update message to a
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zone for which the server is master.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/4.5/common/007_bind.patch">
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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_xmm">
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<strong>008: RELIABILITY FIX: October 05, 2009</strong>
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<i>i386 only</i><br>
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XMM exceptions are not correctly handled resulting in a kernel panic.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/4.5/i386/008_xmm.patch">
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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_getsockopt">
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<strong>009: RELIABILITY FIX: October 28, 2009</strong>
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<i>All architectures</i><br>
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getsockopt(2) with any of IP_AUTH_LEVEL, IP_ESP_TRANS_LEVEL, IP_ESP_NETWORK_LEVEL,
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IP_IPCOMP_LEVEL will crash the system.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/4.5/common/009_getsockopt.patch">
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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_openssl">
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<strong>010: SECURITY FIX: November 26, 2009</strong>
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<i>All architectures</i><br>
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The SSL/TLS protocol is subject to man-in-the-middle attacks related to
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renegotiation (see CVE-2009-3555, draft-ietf-tls-renegotiation-00).
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OpenSSL permitted this protocol feature by default and had no way to
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disable it.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/4.5/common/010_openssl.patch">
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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_ptrace">
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<strong>011: RELIABILITY FIX: January 29, 2010</strong>
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<i>All architectures</i><br>
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By using ptrace(2) on an ancestor process, a loop in the process tree
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could be created, violating assumptions in other parts of the kernel
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and resulting in infinite loops.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/4.5/common/011_ptrace.patch">
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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_openssl">
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<strong>012: SECURITY FIX: March 12, 2010</strong>
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<i>All architectures</i><br>
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OpenSSL is susceptible to a buffer overflow due to a failure
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to check for NULL returns from bn_wexpand function calls.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/4.5/common/012_openssl.patch">
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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_ftpd">
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<strong>013: RELIABILITY FIX: March 12, 2010</strong>
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<i>All architectures</i><br>
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Due to a null pointer dereference, it would be possible to crash ftpd when
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handling glob(3)'ing requests. This is non-exploitable.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/4.5/common/013_ftpd.patch">
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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_kerberos">
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<strong>014: RELIABILITY FIX: March 31, 2010</strong>
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<i>All architectures</i><br>
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When decrypting packets, the internal decryption functions were not
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paranoid enough in checking for underruns, which could potentially
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lead to crashes.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/4.5/common/014_kerberos.patch">
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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_mpi">
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<strong>015: RELIABILITY FIX: April 4, 2010</strong>
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<i>All architectures</i><br>
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When updating sensors showing the state of RAID volumes
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<a href="https://man.openbsd.org/OpenBSD-4.5/mpi.4">mpi(4)</a>
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allocates temporary memory and then returns it to the kernel as
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device memory.
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This causes kernel memory usage to be misrepresented, eventually
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leading to a denial of service when a resource limit is apparently
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reached.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/4.5/common/015_mpi.patch">
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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_openssl">
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<strong>016: SECURITY FIX: April 14, 2010</strong>
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<i>All architectures</i><br>
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In TLS connections, certain incorrectly formatted records can cause
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an OpenSSL client or server to crash due to a read attempt at NULL.
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<br>
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<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/4.5/common/016_openssl.patch">
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A source code patch exists which remedies this problem.</a>
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<p>
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</ul>
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<hr>
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