GLSA 201110-05: GnuTLS: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	GnuTLS: Multiple vulnerabilities
Date:	10/10/2011
Bugs:	#281224, #292025
ID:	201110-05

Synopsis

Multiple vulnerabilities were found in GnuTLS, allowing for easier man-in-the-middle attacks.

Background

GnuTLS is an Open Source implementation of the TLS 1.2 and SSL 3.0 protocols.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-libs/gnutls	< 2.10.0	>= 2.10.0	All supported architectures

Description

Multiple vulnerabilities have been discovered in GnuTLS. Please review the CVE identifiers referenced below for details.

Impact

An attacker could perform man-in-the-middle attacks to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority or to inject an arbitrary amount of chosen plaintext into the beginning of the application protocol stream, allowing for further exploitation.

Workaround

There is no known workaround at this time.

Resolution

All GnuTLS users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=net-libs/gnutls-2.10.0"

NOTE: This is a legacy GLSA. Updates for all affected architectures are available since August 6, 2010. It is likely that your system is already no longer affected by this issue.

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201110-05.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.