Gentoo: GLSA-201412-06: libxml2: Denial of Service
Summary
parser.c in libxml2 before 2.9.2 does not properly prevent entity expansion even when entity substitution has been disabled.
Resolution
All libxml2 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.9.2"
Packages which depend on this library may need to be recompiled. Tools
such as revdep-rebuild may assist in identifying these packages.
References
[ 1 ] CVE-2014-3660 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-3660
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201412-06
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 could result in 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 < 2.9.2 >= 2.9.2
Impact
===== A context-dependent attacker could entice a user to a specially crafted XML file using an application linked against libxml2, possibly resulting in a Denial of Service condition.
Workaround
There is no known workaround at this time.