TITLE:
Dovecot "imap/pop3-login" Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA18870

VERIFY ADVISORY:
http://secunia.com/advisories/18870/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
Dovecot 0.x
http://secunia.com/product/6871/

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

The vulnerability is caused due to a double free error in pop3-login
and imap-login when processing certain requests and can be exploited
to crash the service.

Successful exploitation requires that "login_process_per_connection =
no" has been set in the configuration file.

The vulnerability has been reported in versions prior to 1.0 beta3.

SOLUTION:
The vulnerability has been fixed in 1.0 beta3.

PROVIDED AND/OR DISCOVERED BY:
Reported by vendor.

ORIGINAL ADVISORY:
http://www.dovecot.org/list/dovecot/2006-February/011367.html

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

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

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