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To improve our services to our customers, we have made a number of
additions to the Secunia Advisories and have started translating the
advisories to German.

The improvements will help our customers to get a better
understanding of how we reached our conclusions, how it was rated,
our thoughts on exploitation, attack vectors, and scenarios.

This includes:
* Reason for rating
* Extended description
* Extended solution
* Exploit code or links to exploit code
* Deep links

Read the full description:
http://corporate.secunia.com/products/48/?r=l

Contact Secunia Sales for more information:
http://corporate.secunia.com/how_to_buy/15/?r=l

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TITLE:
Dovecot Cache File Off-By-One Vulnerability

SECUNIA ADVISORY ID:
SA23007

VERIFY ADVISORY:
http://secunia.com/advisories/23007/

CRITICAL:
Moderately critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
Dovecot 1.x
http://secunia.com/product/10191/

DESCRIPTION:
A vulnerability has been reported in Dovecot, which can be exploited
by malicious users to cause a DoS (Denial of Service) or potentially
compromise a vulnerable system.

The vulnerability is caused due to an off-by-one error when the
dovecot.index.cache file is read into memory. If the "mmap_disable"
option is set to "yes", this can be exploited to cause a one-byte
buffer overflow.

The vulnerability is reported in version 1.0test53 through 1.0.rc14.

SOLUTION:
Update to version 1.0rc15.

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
http://www.dovecot.org/list/dovecot-news/2006-November/000024.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:
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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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