Gentoo: GLSA-202401-15 Moderate: Libxml3 Security Vulnerability Alert
gentoo
February 29, 2012
A boundary error in libxml2 could result in execution of arbitrary code or Denial of Service.
Summary
The "xmlStringLenDecodeEntities()" function in parser.c contains a boundary error which could possibly cause a heap-based buffer overflow.
Resolution
All libxml2 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.7.8-r4"
Packages which depend on this library may need to be recompiled. Tools such as revdep-rebuild may assist in identifying some of these packages.
Packages which depend on this library may need to be recompiled. Tools such as revdep-rebuild may assist in identifying some of these packages.
References
[ 1 ] CVE-2011-3919 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3919
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201202-09
style>.gentoo_availability{display:block;}
Concerns
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
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Severity: Normal
Title: libxml2: User-assisted execution of arbitrary code
Date: February 29, 2012
Bugs: #398361
ID: 201202-09
Background
libxml2 is the XML C parser and toolkit developed for the Gnome
project.
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Affected Packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-libs/libxml2 < 2.7.8-r4 >= 2.7.8-r4
Impact
=====
A remote attacker could entice a user to open a specially crafted XML
file in an application linked against libxml2, possibly resulting in
the remote execution of arbitrary code with the permissions of the user
running the application, or Denial of Service.
Workaround
There is no known workaround at this time.
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