Vulnerability Note VU#599220
ClamAV vulnerable to buffer overflow via malicious database mirror
The Open Source anti-virus program ClamAV's update engine, freshclam, contains a buffer overflow vulnerability. If exploited, an attacker could create a denial-of-service condition, or possibly run arbitrary code with the privileges of the freshclam process.
Freshclam is a command line utility that installs and updates virus signatures that are used by the ClamAV anti-virus software. It uses the HTTP protocol to perform file downloads from various web servers that host virus signature updates.
By directly changing one of the HTTP mirrors, or by using another means of redirecting the freshclam process to an attacker-controlled HTTP server, the attacker could cause a denial-of-service condition by sending an oversized HTTP header to the freshclam process.
A remote attacker may create a denial-of-service condition. The vendor reports that remote execution of arbitrary code would not be easy due to diversity of client platforms and architectures.
Systems Affected (Learn More)
|Vendor||Status||Date Notified||Date Updated|
|SUSE Linux||Affected||-||28 Jun 2006|
|Clam AntiVirus||Unknown||-||28 Jun 2006|
|Debian GNU/Linux||Unknown||-||28 Jun 2006|
CVSS Metrics (Learn More)
This document was written by Ryan Giobbi.
- CVE IDs: CVE-2006-1989
- Date Public: 27 Jun 2006
- Date First Published: 28 Jun 2006
- Date Last Updated: 29 Jun 2006
- Severity Metric: 0.11
- Document Revision: 28
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