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PAM-MySQL: Multiple vulnerabilities


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200606-18 / pam_mysql
Release Date June 15, 2006
Latest Revision July 29, 2006: 02
Impact normal
Exploitable local
Package Vulnerable versions Unaffected versions Architecture(s)
sys-auth/pam_mysql < 0.7_rc1 >= 0.7_rc1 All supported architectures

Related bugreports: #120842


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

2.  Impact Information


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


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


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.

3.  Resolution Information


There is no known workaround at this time.


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

Code Listing 3.1: Resolution

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

4.  References


Page updated June 15, 2006

Summary: This is a Gentoo Linux Security Advisory

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