GLSA 201507-08: libxml2: Denial of Service

http://security.gentoo.org/

Severity:	normal
Title:	libxml2: Denial of Service
Date:	07/07/2015
Bugs:	#546720
ID:	201507-08

Synopsis

A vulnerability in libxml2 allows a remote attacker to cause Denial of Service.

Background

libxml2 is the XML C parser and toolkit developed for the Gnome project.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-libs/libxml2	< 2.9.2-r1	>= 2.9.2-r1	All supported architectures

Description

libxml2 returns the empty string when the allocation limit is encountered while constructing the attribute value string.

Impact

A remote attacker may be able to cause Denial of Service via a specially crafted XML file.

Workaround

There is no known workaround at this time.

Resolution

All libxml2 users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.9.2-r1"

References

CVE-2015-1819

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201507-08.xml

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.