oss-security - CVE request: bzip2 CERT-FI: 20469

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Date: Tue, 18 Mar 2008 15:34:03 +0100
From: Robert Buchholz <rbu@...too.org>
To: oss-security@...ts.openwall.com
Subject: CVE request: bzip2 CERT-FI: 20469

Hey,

CERT-FI: 20469 [1] was released yesterday, and with it a new bzip2 
release, quoting their CHANGES:

1.0.5 (10 Dec 07)
~~~~~~~~~~~~~~~~~
Security fix only.  Fixes CERT-FI 20469 as it applies to bzip2.

Reading the patch [2], it's missing a boundary check that can lead to an 
over-read on the tt/ll heap-buffer. I'd call this a DoS, did anyone 
else review?

Thanks,
Robert

[1] 
https://www.cert.fi/haavoittuvuudet/joint-advisory-archive-formats.html
[2] https://bugs.gentoo.org/attachment.cgi?id=146488&action=view

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