GLSA 200604-09: Cyrus-SASL: DIGEST-MD5 Pre-Authentication Denial of Service

http://security.gentoo.org/

Severity:	normal
Title:	Cyrus-SASL: DIGEST-MD5 Pre-Authentication Denial of Service
Date:	04/21/2006
Bugs:	#129523
ID:	200604-09

Synopsis

Cyrus-SASL contains a vulnerability in the DIGEST-MD5 process that could lead to a Denial of Service.

Background

Cyrus-SASL is an implementation of the Simple Authentication and Security Layer.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-libs/cyrus-sasl	< 2.1.21-r2	>= 2.1.21-r2	All supported architectures

Description

Cyrus-SASL contains an unspecified vulnerability in the DIGEST-MD5 process that could lead to a Denial of Service.

Impact

An attacker could possibly exploit this vulnerability by sending specially crafted data stream to the Cyrus-SASL server, resulting in a Denial of Service even if the attacker is not able to authenticate.

Workaround

There is no known workaround at this time.

Resolution

All Cyrus-SASL users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-libs/cyrus-sasl-2.1.21-r2"

References

CVE-2006-1721

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200604-09.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.