[ GLSA 200605-03 ] ClamAV: Buffer overflow in Freshclam

[GLSA]

Gentoo Linux Security Advisory

Title: ClamAV: Buffer overflow in Freshclam (GLSA 200605-03)
Severity: normal
Exploitable: remote
Date: May 02, 2006
Bug(s): #131791
ID: 200605-03

Synopsis

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

Background

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

Affected Packages

Package: app-antivirus/clamav
Vulnerable: < 0.88.2
Unaffected: >= 0.88.2
Architectures: All supported architectures


Description

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

Impact

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

Workaround

There is no known workaround at this time.

Resolution

All ClamAV users should upgrade to the latest version: