ClamAV: Multiple Denials of Service — GLSA 200809-18

Multiple vulnerabilities in ClamAV may result in a Denial of Service.

Affected packages

Package	app-antivirus/clamav on all architectures
Affected versions	< 0.94
Unaffected versions	>= 0.94

Background

Clam AntiVirus is a free anti-virus toolkit for UNIX, designed especially for e-mail scanning on mail gateways.

Description

Hanno boeck reported an error in libclamav/chmunpack.c when processing CHM files (CVE-2008-1389). Other unspecified vulnerabilities were also reported, including a NULL pointer dereference in libclamav (CVE-2008-3912), memory leaks in freshclam/manager.c (CVE-2008-3913), and file descriptor leaks in libclamav/others.c and libclamav/sis.c (CVE-2008-3914).

Impact

A remote attacker could entice a user or automated system to scan a specially crafted CHM, possibly resulting in a Denial of Service (daemon crash). The other attack vectors mentioned above could also result in a Denial of Service.

Workaround

There is no known workaround at this time.

Resolution

All ClamAV users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.94"

References

Release date
September 25, 2008

Latest revision
September 25, 2008: 01

Severity
normal

Exploitable
remote

Bugzilla entries

236665