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Message-ID: <200507061306.34533.fdlist@digitaloffense.net>
Date: Wed Jul  6 19:06:10 2005
From: fdlist at digitaloffense.net (H D Moore)
Subject: [ GLSA 200507-05 ] zlib: Buffer overflow

Does anyone have an idea on how to trigger this? Debian and SuSE say this 
is a denial of service. Gentoo says "code execution", but they are the 
ones who found the bug. Most zlib bugs can be exploited prior to 
authentication in OpenSSH. The patch being is being distributed by the 
vendors and is not on zlib.org yet:

[ inftrees.c ]
-    if (left > 0 && (type == CODES || (codes - count[0] != 1)))
+    if (left > 0 && (type == CODES || max != 1))

-HD

On Wednesday 06 July 2005 09:23, Thierry Carrez wrote:
> Gentoo Linux Security Advisory                           GLSA 200507-05

>   Severity: High
>      Title: zlib: Buffer overflow
>       Date: July 06, 2005
>       Bugs: #98121
>         ID: 200507-05
>
> A buffer overflow has been discovered in zlib, potentially resulting in
> the execution of arbitrary code.

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