Gentoo: GLSA-201409-08: libxml2: Denial of Service
Summary
A vulnerability in the xmlParserHandlePEReference() function of parser.c, when expanding entity references, can be exploited to consume large amounts of memory and cause a crash or hang.
Resolution
All libxml2 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.9.1-r4"
References
[ 1 ] CVE-2014-0191 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-0191
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201409-08
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.
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 ------------------------------------------------------------------- 1 dev-libs/libxml2 < 2.9.1-r4 >= 2.9.1-r4
Impact
===== A remote attacker may be able to cause Denial of Service via a specially crafted XML file containing malicious attributes.
Workaround
There is no known workaround at this time.