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ClamAV: Multiple vulnerabilities

Content:

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200704-21 / ClamAV
Release Date April 24, 2007
Latest Revision April 24, 2007: 01
Impact high
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
app-antivirus/clamav < 0.90.2 >= 0.90.2 All supported architectures

Related bugreports: #174375

Synopsis

Multiple vulnerabilities have been discovered in ClamAV allowing for the remote execution of arbitrary code.

2.  Impact Information

Background

ClamAV is a GPL virus scanner.

Description

iDefense Labs have reported a stack-based buffer overflow in the cab_unstore() function when processing negative values in .cab files. Multiple file descriptor leaks have also been reported in chmunpack.c, pdf.c and dblock.c when processing .chm files.

Impact

A remote attacker could send a specially crafted CHM file to the scanner, possibly resulting in the remote execution of arbitrary code with the privileges of the user running ClamAV.

3.  Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All ClamAV users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.90.2"

4.  References



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Page updated April 24, 2007

Summary: This is a Gentoo Linux Security Advisory

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