Joined: 12 May 2004
|Posted: Sat Dec 29, 2007 6:26 pm Post subject: [ GLSA 200712-20 ] ClamAV: Multiple vulnerabilities
|Gentoo Linux Security Advisory
Title: ClamAV: Multiple vulnerabilities (GLSA 200712-20)
Date: December 29, 2007
Multiple vulnerabilities have been discovered in ClamAV allowing remote execution of arbitrary code and Denial of Service attacks.
Clam AntiVirus is a free anti-virus toolkit for UNIX, designed especially for e-mail scanning on mail gateways.
Vulnerable: < 0.91.2-r1
Unaffected: >= 0.91.2-r1
Architectures: All supported architectures
iDefense reported an integer overflow vulnerability in the cli_scanpe() function when parsing Portable Executable (PE) files packed in the MEW format, that could be exploited to cause a heap-based buffer overflow (CVE-2007-6335). Toeroek Edwin reported an off-by-one error when decompressing MS-ZIP compressed CAB files (CVE-2007-6336). An unspecified vulnerability related to the bzip2 decompression algorithm has also been discovered (CVE-2007-6337).
A remote attacker could entice a user or automated system to scan a specially crafted file, possibly leading to the execution of arbitrary code with the privileges of the user running ClamAV (either a system user or the "clamav" user if clamd is compromised).
There is no known workaround at this time.
All ClamAV users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.91.2-r1"