GLSA-200403-01 : Libxml2 URI Parsing Buffer Overflow Vulnerabilities
High Nessus Plugin ID 14452
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-200403-01 (Libxml2 URI Parsing Buffer Overflow Vulnerabilities)
Yuuichi Teranishi discovered a flaw in libxml2 versions prior to 2.6.6.
When the libxml2 library fetches a remote resource via FTP or HTTP, libxml2 uses parsing routines that can overflow a buffer caused by improper bounds checking if they are passed a URL longer than 4096 bytes.
If an attacker is able to exploit an application using libxml2 that parses remote resources, then this flaw could be used to execute arbitrary code.
No workaround is available; users are urged to upgrade libxml2 to 2.6.6.
SolutionAll users are recommended to upgrade their libxml2 installation:
# emerge sync # emerge -pv '>=dev-libs/libxml2-2.6.6' # emerge '>=dev-libs/libxml2-2.6.6'