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TITLE:
Courier Mail Server Memory Corruption Vulnerability

SECUNIA ADVISORY ID:
SA15901

VERIFY ADVISORY:
http://secunia.com/advisories/15901/

CRITICAL:
Less critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
Courier Mail Server 0.x
http://secunia.com/product/2557/

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

ORIGINAL ADVISORY:
http://www.courier-mta.org/changelog.html

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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