1. Gentoo Linux Security Advisory
| Advisory Reference | GLSA 200501-46 / clamav |
| Release Date | January 31, 2005 |
| Latest Revision | May 22, 2006: 02 |
| Impact | normal |
| Exploitable | remote |
| Package | Vulnerable versions | Unaffected versions | Architecture(s) |
| app-antivirus/clamav | <= 0.80 | >= 0.81 | All supported architectures |
Related bugreports: #78656, #79194
ClamAV contains two vulnerabilities that could lead to Denial of Service and evasion of virus scanning.
ClamAV is an antivirus toolkit. It includes a multi-threaded daemon and a command line scanner.
ClamAV fails to properly scan ZIP files with special headers (CAN-2005-0133) and base64 encoded images in URLs.
By sending a base64 encoded image file in a URL an attacker could evade virus scanning. By sending a specially-crafted ZIP file an attacker could cause a Denial of Service by crashing the clamd daemon.
There is no known workaround at this time.
All ClamAV users should upgrade to the latest version:
Code Listing 3.1: Resolution |
# emerge --sync # emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.81" |