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Kerio MailServer LDAP searchRequest Denial of Service
Secunia Advisory: SA22861
Release Date: 2006-11-14
Last Update: 2006-12-17
Popularity: 5,412 views

Critical:
Moderately critical
Impact: DoS
Where: From remote
Solution Status: Vendor Patch

Software:Kerio MailServer 6.x

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CVE reference:CVE-2006-5812


Description:
Evgeny Legerov has discovered a vulnerability in Kerio MailServer, which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error in the handling of LDAP searchRequest queries and can be exploited to stop the service via a specially crafted packet.

The vulnerability is confirmed in version 6.3.0 and reported in version 6.2.2. Other versions may also be affected.

Solution:
Update to version 6.3.1.

Provided and/or discovered by:
Evgeny Legerov, GLEG Ltd.

Changelog:
2006-11-16: Added CVE reference.
2006-12-15: Updated "Solution" section. Added details provided by GLEG Ltd.

Original Advisory:
http://lists.grok.org.uk/pipermail/full-disclosure/2006-December/051308.html


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