GLSA 201405-16: Mono: Denial of Service

http://security.gentoo.org/

Severity:	normal
Title:	Mono: Denial of Service
Date:	05/18/2014
Bugs:	#433768
ID:	201405-16

Synopsis

A hash collision vulnerability in Mono allows remote attackers to cause a Denial of Service condition.

Background

Mono is an open source implementation of Microsoft’s .NET Framework.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-lang/mono	< 2.10.9-r2	>= 2.10.9-r2	All supported architectures

Description

Mono does not properly randomize hash functions for form posts to protect against hash collision attacks.

Impact

A remote attacker could send specially crafted parameters, possibly resulting in a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All Mono users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-lang/mono-2.10.9-r2"

References

CVE-2012-3543

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201405-16.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.