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[SA13307] jabberd Client to Server Component Buffer Overflow Vulnerability

From: Secunia Security Advisories (sec-advsecunia.com)
Date: Thu Nov 25 2004 - 05:34:45 CST

TITLE:
jabberd Client to Server Component Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA13307

VERIFY ADVISORY:
http://secunia.com/advisories/13307/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
From remote

SOFTWARE:
jabberd 2.x
http://secunia.com/product/2730/

DESCRIPTION:
Zhaowei has reported a vulnerability in jabberd, which can be
exploited by malicious people to compromise a vulnerable system.

The vulnerability is caused due to boundary errors in the C2S (Client
to Server) component when using mysql or pgsql for authentication.
This can be exploited to cause a buffer overflow by supplying a
specially crafted, overly long username to the server.

Successful exploitation may allow execution of arbitrary code.

The vulnerability has been reported in versions 2.0s2, 2.0s3, and
2.0s4. Other versions may also be affected.

SOLUTION:
The vulnerability has been fixed in the CVS repository.

PROVIDED AND/OR DISCOVERED BY:
Zhaowei

ORIGINAL ADVISORY:
http://mail.jabber.org/pipermail/jadmin/2004-November/018998.html

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