Courier Mail Server Memory Corruption Vulnerability
Secunia Advisory: SA15901
Release Date: 2005-07-04
Last Update: 2005-07-12
Popularity: 6,152 views

Critical:
Less critical
Impact: DoS
Where: From remote
Solution Status: Vendor Patch

Software:Courier Mail Server 0.x

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CVE reference:CVE-2005-2151


Description:
A vulnerability has been reported in Courier Mail Server, which potentially can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error in "rfc1035/spf.c" when handling DNS lookup failures while looking up SPF records. This causes freeing of non-allocated memory and can potentially be exploited to crash the service.

The vulnerability has been reported in version 0.50.0. Prior versions may also be affected.

Solution:
Update to version 0.50.1

Provided and/or discovered by:
Mr. Sam

Changelog:
2005-07-12: Added CVE reference.

Original Advisory:
http://www.courier-mta.org/changelog.html


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