Mono: Denial of Service — GLSA 201405-16

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

Affected Packages

dev-lang/mono on all architectures
Affected versions < 2.10.9-r2
Unaffected versions >= 2.10.9-r2

Background

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

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

Release Date
May 18, 2014

Latest Revision
May 18, 2014: 1

Severity
normal

Exploitable
remote

Bugzilla entries