ClamAV: Buffer overflow in Freshclam — GLSA 200605-03

Freshclam is vulnerable to a buffer overflow that could lead to execution of arbitrary code.

Package	app-antivirus/clamav on all architectures
Affected versions	< 0.88.2
Unaffected versions	>= 0.88.2

ClamAV is a GPL virus scanner. Freshclam is a utility to download virus signature updates.

Ulf Harnhammar and an anonymous German researcher discovered that Freshclam fails to check the size of the header data returned by a webserver.

By enticing a user to connect to a malicious webserver an attacker could cause the execution of arbitrary code.

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-0.88.2"

Release date
May 02, 2006

Latest revision
May 02, 2006: 01

Severity
normal

Exploitable
remote

Bugzilla entries