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<h2 id=OpenBSD>
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<i>Open</i><b>BSD</b></a>
7.6 Errata
</h2>
<hr>

For errata on a certain release, click below:<br>
<a href="errata20.html">2.0</a>,
<a href="errata21.html">2.1</a>,
<a href="errata22.html">2.2</a>,
<a href="errata23.html">2.3</a>,
<a href="errata24.html">2.4</a>,
<a href="errata25.html">2.5</a>,
<a href="errata26.html">2.6</a>,
<a href="errata27.html">2.7</a>,
<a href="errata28.html">2.8</a>,
<a href="errata29.html">2.9</a>,
<a href="errata30.html">3.0</a>,
<a href="errata31.html">3.1</a>,
<a href="errata32.html">3.2</a>,
<a href="errata33.html">3.3</a>,
<a href="errata34.html">3.4</a>,
<a href="errata35.html">3.5</a>,
<br>
<a href="errata36.html">3.6</a>,
<a href="errata37.html">3.7</a>,
<a href="errata38.html">3.8</a>,
<a href="errata39.html">3.9</a>,
<a href="errata40.html">4.0</a>,
<a href="errata41.html">4.1</a>,
<a href="errata42.html">4.2</a>,
<a href="errata43.html">4.3</a>,
<a href="errata44.html">4.4</a>,
<a href="errata45.html">4.5</a>,
<a href="errata46.html">4.6</a>,
<a href="errata47.html">4.7</a>,
<a href="errata48.html">4.8</a>,
<a href="errata49.html">4.9</a>,
<a href="errata50.html">5.0</a>,
<a href="errata51.html">5.1</a>,
<br>
<a href="errata52.html">5.2</a>,
<a href="errata53.html">5.3</a>,
<a href="errata54.html">5.4</a>,
<a href="errata55.html">5.5</a>,
<a href="errata56.html">5.6</a>,
<a href="errata57.html">5.7</a>,
<a href="errata58.html">5.8</a>,
<a href="errata59.html">5.9</a>,
<a href="errata60.html">6.0</a>,
<a href="errata61.html">6.1</a>,
<a href="errata62.html">6.2</a>,
<a href="errata63.html">6.3</a>,
<a href="errata64.html">6.4</a>,
<a href="errata65.html">6.5</a>,
<a href="errata66.html">6.6</a>,
<a href="errata67.html">6.7</a>,
<br>
<a href="errata68.html">6.8</a>,
<a href="errata69.html">6.9</a>,
<a href="errata70.html">7.0</a>,
<a href="errata71.html">7.1</a>,
<a href="errata72.html">7.2</a>,
<a href="errata73.html">7.3</a>,
<a href="errata74.html">7.4</a>,
<a href="errata75.html">7.5</a>,
<a href="errata77.html">7.7</a>.
<hr>

<p>
Patches for the OpenBSD base system are distributed as unified diffs.
Each patch is cryptographically signed with the
<a href="https://man.openbsd.org/OpenBSD-7.6/signify.1">signify(1)</a> tool and contains
usage instructions.
All the following patches are also available in one
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/7.6.tar.gz">tar.gz file</a>
for convenience.

<p>
Alternatively, the <a href="https://man.openbsd.org/syspatch">syspatch(8)</a>
utility can be used to apply binary updates on the following architectures:
amd64, i386, arm64.

<p>
Patches for supported releases are also incorporated into the
<a href="stable.html">-stable branch</a>.

<hr>

<ul>

<li id="p001_unbound">
<strong>001: SECURITY FIX: October 14, 2024</strong>
&nbsp; <i>All architectures</i>
<br>
Querying a maliciously constructed DNS zone could result in degraded
performance or denial of service.  CVE-2024-8508
<br>
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/7.6/common/001_unbound.patch.sig">
A source code patch exists which remedies this problem.</a>
<p>

<li id="p002_xserver">
<strong>002: SECURITY FIX: October 29, 2024</strong>
&nbsp; <i>All architectures</i>
<br>
Fix memory allocation error in the Xkb X11 server extension. CVE-2024-9632
<br>
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/7.6/common/002_xserver.patch.sig">
A source code patch exists which remedies this problem.</a>
<p>

<li id="p003_ssh">
<strong>003: RELIABILITY FIX: October 29, 2024</strong>
&nbsp; <i>hppa m88k mips64 powerpc powerpc64 sh sparc64</i>
<br>
mlkem768x25519-sha256 byte order bug on big-endian machines.
<br>
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/7.6/common/003_ssh.patch.sig">
A source code patch exists which remedies this problem.</a>
<p>

<li id="p004_aplsmc">
<strong>004: RELIABILITY FIX: October 31, 2024</strong>
&nbsp; <i>arm64</i>
<br>
Updating Apple Silicon system firmware to the latest version cripples
OpenBSD.  This disabled the onboard WiFi.
<br>
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/7.6/common/004_aplsmc.patch.sig">
A source code patch exists which remedies this problem.</a>
<p>

<li id="p005_expat">
<strong>005: SECURITY FIX: November 15, 2024</strong>
&nbsp; <i>All architectures</i>
<br>
In libexpat fix crash within function XML_ResumeParser.  CVE-2024-50602
<br>
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/7.6/common/005_expat.patch.sig">
A source code patch exists which remedies this problem.</a>
<p>

<li id="p006_wg">
<strong>006: RELIABILITY FIX: January 10, 2025</strong>
&nbsp; <i>All architectures</i>
<br>
Traffic sent over wg(4) could result in kernel crash.
<br>
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/7.6/common/006_wg.patch.sig">
A source code patch exists which remedies this problem.</a>
<p>

<li id="p007_pffrag">
<strong>007: RELIABILITY FIX: February 10, 2025</strong>
&nbsp; <i>All architectures</i>
<br>
pf(4) could reassemble overlapping fragments into an incorrect IP
packet that was too short.
<br>
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/7.6/common/007_pffrag.patch.sig">
A source code patch exists which remedies this problem.</a>
<p>

<li id="p008_ssh">
<strong>008: SECURITY FIX: February 18, 2025</strong>
&nbsp; <i>All architectures</i>
<br>
sshd(8) denial of service relating to SSH2_MSG_PING handling.
ssh(1) server impersonation when VerifyHostKeyDNS enabled.
<br>
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/7.6/common/008_ssh.patch.sig">
A source code patch exists which remedies this problem.</a>
<p>

<li id="p009_xserver">
<strong>009: SECURITY FIX: February 25, 2025</strong>
&nbsp; <i>All architectures</i>
<br>
Multiple X server issues.
CVE-2025-26594 CVE-2025-26595 CVE-2025-26596 CVE-2025-26597
CVE-2025-26598 CVE-2025-26599 CVE-2025-26600 CVE-2025-26601
<br>
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/7.6/common/009_xserver.patch.sig">
A source code patch exists which remedies this problem.</a>
<p>

<li id="p010_expat">
<strong>010: SECURITY FIX: March 18, 2025</strong>
&nbsp; <i>All architectures</i>
<br>
In libexpat fix crash caused by stack overflow during recursion.
CVE-2024-8176
<br>
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/7.6/common/010_expat.patch.sig">
A source code patch exists which remedies this problem.</a>
<p>

<li id="p011_expat">
<strong>011: RELIABILITY FIX: April 1, 2025</strong>
&nbsp; <i>All architectures</i>
<br>
In libexpat fix regression of behavior introduced by previous errata.
<br>
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/7.6/common/011_expat.patch.sig">
A source code patch exists which remedies this problem.</a>
<p>

<li id="p012_ike">
<strong>012: SECURITY FIX: April 9, 2025</strong>
&nbsp; <i>All architectures</i>
<br>
iked(8) and isakmpd(8) fix double-free in ecdh mode.
<br>
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/7.6/common/012_ike.patch.sig">
A source code patch exists which remedies this problem.</a>
<p>

<li id="p013_ssh">
<strong>013: SECURITY FIX: April 9, 2025</strong>
&nbsp; <i>All architectures</i>
<br>
sshd(8) fix the DisableForwarding directive, which was failing to
disable X11 forwarding and agent forwarding as documented.
<br>
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/7.6/common/013_ssh.patch.sig">
A source code patch exists which remedies this problem.</a>
<p>

<li id="p014_rpki">
<strong>014: RELIABILITY FIX: April 9, 2025</strong>
&nbsp; <i>All architectures</i>
<br>
Incorrect internal RRDP state handling in rpki-client can lead to a
denial of service.
<br>
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/7.6/common/014_rpki.patch.sig">
A source code patch exists which remedies this problem.</a>
<p>

<li id="p015_perl">
<strong>015: SECURITY FIX: April 13, 2025</strong>
&nbsp; <i>All architectures</i>
<br>
In Perl, non-ASCII bytes in the left-hand-side of the `tr` operator
can overflow an insufficiently sized buffer.  CVE-2024-56406
<br>
<a href="https://ftp.openbsd.org/pub/OpenBSD/patches/7.6/common/015_perl.patch.sig">
A source code patch exists which remedies this problem.</a>
<p>

</ul>

<hr>