From: Secunia Security Advisories (sec-advsecunia.com)
Date: Mon Dec 20 2004 - 00:52:13 CST

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TITLE:
LinPopUp "strexpand()" Function Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA13540

VERIFY ADVISORY:
http://secunia.com/advisories/13540/

CRITICAL:
Moderately critical

IMPACT:
System access

WHERE:
From local network

SOFTWARE:
LinPopUp 1.x
http://secunia.com/product/4417/

DESCRIPTION:
Stephen Dranger has reported a vulnerability in LinPopUp, which can
be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error in the
"strexpand()" function and can be be exploited to cause a buffer
overflow by tricking a user into responding to a malicious message.

Successful exploitation allows execution of arbitrary code.

The vulnerability has been reported in version 1.2.0. Other versions
may also be affected.

SOLUTION:
Don't respond to messages from untrusted sources.

Use another product.

PROVIDED AND/OR DISCOVERED BY:
Stephen Dranger

ORIGINAL ADVISORY:
http://tigger.uic.edu/~jlongs2/holes/linpopup.txt

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