GLSA 200411-05: libxml2: Remotely exploitable buffer overflow

http://security.gentoo.org/

Severity:	high
Title:	libxml2: Remotely exploitable buffer overflow
Date:	11/02/2004
Bugs:	#69154
ID:	200411-05

Synopsis

libxml2 contains multiple buffer overflows which could lead to the execution of arbitrary code.

Background

libxml2 is an XML parsing library written in C.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-libs/libxml2	< 2.6.15	>= 2.6.15	All supported architectures

Description

Multiple buffer overflows have been detected in the nanoftp and nanohttp modules. These modules are responsible for parsing URLs with ftp information, and resolving names via DNS.

Impact

An attacker could exploit an application that uses libxml2 by forcing it to parse a specially-crafted XML file, potentially causing remote execution of arbitrary code.

Workaround

There is no known workaround at this time.

Resolution

All libxml2 users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.6.15"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200411-05.xml

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.