Gentoo: GLSA 201207-02 Normal: libxml2 Off-By-One Code Execution
gentoo
July 9, 2012
A off-by-one error in libxml2 could result in execution of arbitrary code or Denial of Service.
Summary
The "xmlXPtrEvalXPtrPart()" function in xpointer.c contains an off-by-one error.
Topics Covered
Resolution
All libxml2 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.8.0_rc1"
References
[ 1 ] CVE-2011-3102 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3102
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201207-02
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: July 09, 2012
Bugs: #416209
ID: 201207-02
Topics Covered
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 < 2.8.0_rc1 >= 2.8.0_rc1
Impact
=====
A remote attacker could entice a user or automated system to open a
specially crafted XML document with an application using libxml2,
possibly resulting in execution of arbitrary code or a Denial of
Service condition.
Workaround
There is no known workaround at this time.
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