GLSA 200410-05: Cyrus-SASL: Buffer overflow and SASL_PATH vulnerabilities

http://security.gentoo.org/

Severity:	high
Title:	Cyrus-SASL: Buffer overflow and SASL_PATH vulnerabilities
Date:	10/07/2004
Bugs:	#56016
ID:	200410-05

Synopsis

Cyrus-SASL contains two vulnerabilities that might allow an attacker to completely compromise the vulnerable system.

Background

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

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-libs/cyrus-sasl	<= 2.1.18-r1	>= 2.1.18-r2	All supported architectures

Description

Cyrus-SASL contains a remote buffer overflow in the digestmda5.c file. Additionally, under certain conditions it is possible for a local user to exploit a vulnerability in the way the SASL_PATH environment variable is honored (CAN-2004-0884).

Impact

An attacker might be able to execute arbitrary code with the Effective ID of the application calling the Cyrus-SASL libraries.

Workaround

There is no known workaround at this time.

Resolution

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

    # emerge sync
    
    # emerge -pv ">=dev-libs/cyrus-sasl-2.1.18-r2"
    # emerge ">=dev-libs/cyrus-sasl-2.1.18-r2"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200410-05.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.