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Secunia Security Advisory 38881

Secunia Security Advisory 38881
Posted Mar 9, 2010
Authored by Secunia | Site secunia.com

Secunia Security Advisory - A vulnerability has been reported in Dovecot, which can be exploited by malicious people to cause a DoS (Denial of Service).

tags | advisory, denial of service
SHA-256 | dd8ca9a5f7b865551b247c438722113715bcccc5a7e5ec033ee1416d443e47e5

Secunia Security Advisory 38881

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TITLE:
Dovecot Mailbox Large Header Denial of Service

SECUNIA ADVISORY ID:
SA38881

VERIFY ADVISORY:
http://secunia.com/advisories/38881/

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

The vulnerability is caused due to an error when processing certain
large headers, which can be exploited to cause a high CPU load by
sending a specially crafted email to the system.

Successful exploitation requires that the "mbox" mail directory
format is used.

The vulnerability is reported in versions prior to 1.2.11 of the
1.2.x branch. The 1.0.x and 1.1.x branches are not affected.

SOLUTION:
Update to version 1.2.11.

PROVIDED AND/OR DISCOVERED BY:
Stan Hoeppner and Kostik

ORIGINAL ADVISORY:
http://www.dovecot.org/list/dovecot-news/2010-March/000152.html
http://dovecot.org/pipermail/dovecot/2010-February/047190.html
http://dovecot.org/pipermail/dovecot/2010-February/047058.html

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

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

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