GLSA-201009-07 : libxml2: Denial of Service
Medium Nessus Plugin ID 49636
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-201009-07 (libxml2: Denial of Service)
The following vulnerabilities were reported after a test with the Codenomicon XML fuzzing framework:
Two use-after-free vulnerabilities are possible when parsing a XML file with Notation or Enumeration attribute types (CVE-2009-2416).
A stack consumption vulnerability can be triggered via a large depth of element declarations in a DTD, related to a function recursion (CVE-2009-2414).
A remote attacker could entice a user or automated system to open a specially crafted XML document with an application using libxml2 resulting in a Denial of Service condition.
There is no known workaround at this time.
SolutionAll libxml2 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=dev-libs/libxml2-2.7.3-r2' NOTE: This is a legacy GLSA. Updates for all affected architectures are available since August 30, 2009. It is likely that your system is already no longer affected by this issue.