PAM-MySQL: Multiple vulnerabilities — GLSA 200606-18

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

Affected Packages

sys-auth/pam_mysql on all architectures
Affected versions < 0.7_rc1
Unaffected versions >= 0.7_rc1

Background

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

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

Release Date
June 15, 2006

Latest Revision
July 29, 2006: 02

Severity
normal

Exploitable
local

Bugzilla entries