oss-security - Re: CVE request: clamav get_unicode_name() off-by-one buffer overflow

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Date: Thu, 20 Nov 2008 19:43:29 -0500 (EST)
From: "Steven M. Christey" <coley@...us.mitre.org>
To: OSS-Security Mailinglist <oss-security@...ts.openwall.com>
cc: coley@...re.org
Subject: Re: CVE request: clamav get_unicode_name() off-by-one
 buffer overflow

======================================================
Name: CVE-2008-5050
Status: Candidate
URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5050
Reference: BUGTRAQ:20081108 ClamAV get_unicode_name() off-by-one buffer overflow
Reference: URL:http://www.securityfocus.com/archive/1/archive/1/498169/100/0/threaded
Reference: FULLDISC:20081109 ClamAV get_unicode_name() off-by-one buffer overflow
Reference: URL:http://lists.grok.org.uk/pipermail/full-disclosure/2008-November/065530.html
Reference: CONFIRM:http://sourceforge.net/project/shownotes.php?release_id=637952&group_id=86638
Reference: BID:32207
Reference: URL:http://www.securityfocus.com/bid/32207
Reference: FRSIRT:ADV-2008-3085
Reference: URL:http://www.frsirt.com/english/advisories/2008/3085
Reference: SECUNIA:32663
Reference: URL:http://secunia.com/advisories/32663
Reference: XF:clamav-getunicodename-bo(46462)
Reference: URL:http://xforce.iss.net/xforce/xfdb/46462

Off-by-one error in the get_unicode_name function
(libclamav/vba_extract.c) in Clam Anti-Virus (ClamAV) before 0.94.1
allows remote attackers to cause a denial of service (crash) or
possibly execute arbitrary code via a crafted VBA project file, which
triggers a heap-based buffer overflow.

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.