TITLE:
SpamAssassin Long Message Header Denial of Service

SECUNIA ADVISORY ID:
SA17386

VERIFY ADVISORY:
http://secunia.com/advisories/17386/

CRITICAL:
Less critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
SpamAssassin 3.x
http://secunia.com/product/4506/

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

The vulnerability is caused due to the use of an inefficient regular
expression in "/SpamAssassin/Message.pm" to parse email headers. This
can cause perl to crash when it runs out of stack space and can be
exploited via a malicious email that contains a large number of
recipients.

The vulnerability has been reported in version 3.0.4. Prior versions
may also be affected.

SOLUTION:
Update to version 3.1.0.
http://spamassassin.apache.org/downloads.cgi?update=200509141634

PROVIDED AND/OR DISCOVERED BY:
Irina and Mark Martinec.

ORIGINAL ADVISORY:
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4570

----------------------------------------------------------------------

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.

----------------------------------------------------------------------

Unsubscribe: Secunia Security Advisories
http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org

----------------------------------------------------------------------