libxml2: User-assisted execution of arbitrary code
Gentoo Linux Security Advisory
||GLSA 201202-09 / libxml2
||February 29, 2012
||February 29, 2012: 2
All supported architectures
A boundary error in libxml2 could result in execution of arbitrary
code or Denial of Service.
libxml2 is the XML C parser and toolkit developed for the Gnome project.
The "xmlStringLenDecodeEntities()" function in parser.c contains a
boundary error which could possibly cause a heap-based buffer overflow.
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.
There is no known workaround at this time.
All libxml2 users should upgrade to the latest version:
Code Listing 3.1: Resolution
# 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.