F-Secure Vulnerability Information :
libpam-pgsql Authentication Bypass Security Issue

A security issue has been reported in libpam-pgsql, which can be exploited by malicious people to bypass certain security restrictions.

The security issue is caused due to an error in "pam_sm_authenticate()" in pam_pgsql.c and can be exploited to bypass authentication, e.g. by sending a SIGINT during the authentication process.

The vulnerability is reported in version 0.6.3. Prior versions may also be affected.