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TITLE:
Postgrey Format String Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA14958

VERIFY ADVISORY:
http://secunia.com/advisories/14958/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
Postgrey 1.x
http://secunia.com/product/4924/

DESCRIPTION:
Stefan Schmidt has reported a vulnerability in Postgrey, which can be
exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to a format string error in the
logging functionality. This can be exploited to crash a vulnerable
service by sending a mail with a specially crafted sender address.

The vulnerability has been reported in version 1.16, 1.17 and 1.18.
Prior versions may also be affected.

SOLUTION:
Update to version 1.2.1:
http://isg.ee.ethz.ch/tools/postgrey/pub/postgrey-1.21.tar.gz

PROVIDED AND/OR DISCOVERED BY:
Stefan Schmidt

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