GLSA 201309-07: libotr: Arbitrary code execution

http://security.gentoo.org/

Severity:	high
Title:	libotr: Arbitrary code execution
Date:	09/15/2013
Bugs:	#430486
ID:	201309-07

Synopsis

A buffer overflow vulnerability in libotr could allow a remote attacker to execute arbitrary code or cause a Denial of Service condition.

Background

libotr is a portable off-the-record messaging library.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-libs/libotr	< 3.2.1	>= 3.2.1	All supported architectures

Description

Multiple heap-based buffer overflows are present in the Base64 decoder of libotr.

Impact

A remote attacker could send a specially crafted OTR message, resulting in arbitrary code execution with the privileges of the process or a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All libotr users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=net-libs/libotr-3.2.1"

References

CVE-2012-3461

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201309-07.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.