medium
5.5
CWE
416
Advisory Published
Updated

CVE-2016-1836: Use After Free

First published: Fri May 20 2016(Updated: )

A vulnerability was found in the libxml2 library. A heap-use-after free can happen in the xmlDictComputeFastKey. References: <a href="https://bugzilla.gnome.org/show_bug.cgi?id=759398">https://bugzilla.gnome.org/show_bug.cgi?id=759398</a> Upstream fix: <a href="https://git.gnome.org/browse/libxml2/commit/?id=45752d2c334b50016666d8f0ec3691e2d680f0a0">https://git.gnome.org/browse/libxml2/commit/?id=45752d2c334b50016666d8f0ec3691e2d680f0a0</a>

Credit: product-security@apple.com

Affected SoftwareAffected VersionHow to fix
debian/libxml2
2.9.4+dfsg1-7+deb10u4
2.9.4+dfsg1-7+deb10u6
2.9.10+dfsg-6.7+deb11u4
2.9.14+dfsg-1.3~deb12u1
2.9.14+dfsg-1.3
Ubuntu=12.04
Ubuntu=14.04
Ubuntu=15.10
Ubuntu=16.04
Debian=8.0
iStyle @cosme iPhone OS<9.3.2
Apple iOS and macOS<10.11.5
tvOS<9.2.1
Apple iOS, iPadOS, and watchOS<2.2.1
Red Hat Enterprise Linux Desktop=6.0
Red Hat Enterprise Linux Desktop=7.0
Red Hat Enterprise Linux Server=6.0
Red Hat Enterprise Linux Server=7.0
Red Hat Enterprise Linux Server=7.2
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.6
Red Hat Enterprise Linux Server=7.2
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.5
Red Hat Enterprise Linux Server=7.6
Red Hat Enterprise Linux Server=7.2
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.6
Red Hat Enterprise Linux Workstation=6.0
Red Hat Enterprise Linux Workstation=7.0
libxml2-devel<2.9.4
McAfee Web Gateway Cloud Service>=7.5.0.0<=7.5.2.10
McAfee Web Gateway Cloud Service>=7.6.0.0<=7.6.2.3

Remedy

https://git.gnome.org/browse/libxml2/commit/?id=45752d2c334b50016666d8f0ec3691e2d680f0a0

Remedy

https://kc.mcafee.com/corporate/index?page=content&id=SB10170

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2016-1836?

    CVE-2016-1836 is considered a high severity vulnerability due to its potential for exploitation via a heap-use-after-free condition in the libxml2 library.

  • How do I fix CVE-2016-1836?

    To resolve CVE-2016-1836, upgrade libxml2 to version 2.9.4+dfsg1-7+deb10u4 or higher for Debian systems, or to equivalent patched versions for other affected distributions.

  • Which software is affected by CVE-2016-1836?

    CVE-2016-1836 affects various versions of libxml2, along with multiple operating systems including Debian, Ubuntu, macOS, and Red Hat Enterprise Linux.

  • How does CVE-2016-1836 impact system security?

    CVE-2016-1836 can lead to memory corruption, potentially allowing an attacker to execute arbitrary code on affected systems.

  • Is there a known exploit for CVE-2016-1836?

    As of now, there are no publicly available exploits for CVE-2016-1836, but the vulnerability itself poses a significant risk and should be addressed promptly.

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