From: Secunia Security Advisories (sec-advsecunia.com)
Date: Mon May 28 2007 - 11:47:04 CDT

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TITLE:
Mutt GECOS Name Processing Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA25408

VERIFY ADVISORY:
http://secunia.com/advisories/25408/

CRITICAL:
Not critical

IMPACT:
Privilege escalation

WHERE:
Local system

SOFTWARE:
Mutt 1.4.x
http://secunia.com/product/1305/

http://secunia.com/product//

DESCRIPTION:
A vulnerability has been reported in mutt, which potentially can be
exploited by malicious, local users to gain escalated privileges.

A boundary error in the "mutt_gecos_name()" function when processing
"&" characters in the GECOS field can be exploited to cause a buffer
overflow during alias expansion.

Successful exploitation may allow execution of arbitrary code with
another user's privileges, but requires that the malicious user has a
specially crafted realname and exists in the target user's alias file.

SOLUTION:
Update to version 1.4.2.3.
ftp://ftp.mutt.org/mutt/

PROVIDED AND/OR DISCOVERED BY:
raylai

ORIGINAL ADVISORY:
http://dev.mutt.org/trac/ticket/2885

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