Secunia Security Advisory - Some vulnerabilities have been reported in PAM-MySQL, which potentially can be exploited by malicious people to cause a DoS (Denial of Service) or compromise a vulnerable system.
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TITLE:
PAM-MySQL SQL Logging and Authentication Vulnerabilities
SECUNIA ADVISORY ID:
SA18598
VERIFY ADVISORY:
http://secunia.com/advisories/18598/
CRITICAL:
Moderately critical
IMPACT:
DoS, System access
WHERE:
>From remote
SOFTWARE:
PAM-MySQL 0.x
http://secunia.com/product/7880/
DESCRIPTION:
Some vulnerabilities have been reported in PAM-MySQL, which
potentially can be exploited by malicious people to cause a DoS
(Denial of Service) or compromise a vulnerable system.
1) An unspecified error in the SQL logging facility can potentially
be exploited to cause a DoS.
2) A double-free error exists in the authentication and
authentication token alteration code when handling a pointer returned
by the "pam_get_item()" function. This can be exploited by supplying a
specially crafted password, which results in a DoS or can potentially
be exploited to execute arbitrary code.
The vulnerabilities have been reported in versions 0.6.1 and 0.7pre2.
Prior versions may also be affected.
SOLUTION:
Update to version 0.6.2.
The vulnerabilities have also been addressed in version 0.7pre3.
PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.
ORIGINAL ADVISORY:
PAM-MySQL:
http://pam-mysql.sourceforge.net/News/00005.php
http://sourceforge.net/forum/forum.php?forum_id=499394
JVN:
http://jvn.jp/cert/JVNVU%23693909/index.html
OTHER REFERENCES:
US-CERT VU#693909:
http://www.kb.cert.org/vuls/id/693909
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