GLSA 200606-18: PAM-MySQL: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	PAM-MySQL: Multiple vulnerabilities
Date:	06/15/2006
Bugs:	#120842
ID:	200606-18

Synopsis

Vulnerabilities in PAM-MySQL can lead to a Denial of Service, making it impossible to log into a machine.

Background

PAM-MySQL is a PAM module used to authenticate users against a MySQL backend.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
sys-auth/pam_mysql	< 0.7_rc1	>= 0.7_rc1	All supported architectures

Description

A flaw in handling the result of pam_get_item() as well as further unspecified flaws were discovered in PAM-MySQL.

Impact

By exploiting the mentioned flaws an attacker can cause a Denial of Service and thus prevent users that authenticate against PAM-MySQL from logging into a machine. There is also a possible additional attack vector with more malicious impact that has not been confirmed yet.

Workaround

There is no known workaround at this time.

Resolution

All PAM-MySQL users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=sys-auth/pam_mysql-0.7_rc1"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200606-18.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.