high
7.8
CWE
119
Advisory Published
Updated

CVE-2016-1840: Buffer Overflow

First published: Fri May 20 2016(Updated: )

A vulnerability was found in the libxml2 library. A heap-buffer overflow could happen in xmlFAParsePosCharGroup References: <a href="https://bugzilla.gnome.org/show_bug.cgi?id=757711">https://bugzilla.gnome.org/show_bug.cgi?id=757711</a> Upstream fix: <a href="https://git.gnome.org/browse/libxml2/commit/?id=cbb271655cadeb8dbb258a64701d9a3a0c4835b4">https://git.gnome.org/browse/libxml2/commit/?id=cbb271655cadeb8dbb258a64701d9a3a0c4835b4</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
Debian=8.0
iOS<9.3.2
Apple iOS and macOS<10.11.5
tvOS<9.2.1
Apple iOS, iPadOS, and watchOS<2.2.1
Ubuntu=12.04
Ubuntu=14.04
Ubuntu=15.10
Ubuntu=16.04
redhat enterprise Linux desktop=6.0
redhat enterprise Linux desktop=7.0
redhat enterprise Linux server=6.0
redhat enterprise Linux server=7.0
redhat enterprise Linux server aus=7.2
redhat enterprise Linux server aus=7.3
redhat enterprise Linux server aus=7.4
redhat enterprise Linux server aus=7.6
redhat enterprise Linux server eus=7.2
redhat enterprise Linux server eus=7.3
redhat enterprise Linux server eus=7.4
redhat enterprise Linux server eus=7.5
redhat enterprise Linux server eus=7.6
redhat enterprise Linux server tus=7.2
redhat enterprise Linux server tus=7.3
redhat enterprise Linux server tus=7.6
redhat enterprise Linux workstation=6.0
redhat enterprise Linux workstation=7.0
libxml2<2.9.4
McAfee Web Gateway>=7.5.0.0<=7.5.2.10
McAfee Web Gateway>=7.6.0.0<=7.6.2.3

Remedy

https://git.gnome.org/browse/libxml2/commit/?id=cbb271655cadeb8dbb258a64701d9a3a0c4835b4

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-2016-1840?

    CVE-2016-1840 has a high severity level due to the potential for a heap-buffer overflow that can lead to arbitrary code execution.

  • How do I fix CVE-2016-1840?

    To fix CVE-2016-1840, upgrade to a fixed version of libxml2 that is 2.9.4+dfsg1-7+deb10u4 or higher.

  • What systems are affected by CVE-2016-1840?

    CVE-2016-1840 affects various systems including Debian, Ubuntu, macOS, and Red Hat Enterprise Linux with specific versions of libxml2.

  • What is the cause of CVE-2016-1840?

    CVE-2016-1840 is caused by a heap-buffer overflow in the libxml2 library during the parsing of character groups.

  • Is there a known exploit for CVE-2016-1840?

    As of now, there are no public exploits specifically targeting CVE-2016-1840, but its nature makes it a potential risk.

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