1. Gentoo Linux Security Advisory
| Advisory Reference | GLSA 200506-23 / clamav |
| Release Date | June 27, 2005 |
| Latest Revision | May 22, 2006: 02 |
| Impact | normal |
| Exploitable | remote |
| Package | Vulnerable versions | Unaffected versions | Architecture(s) |
| app-antivirus/clamav | < 0.86.1 | >= 0.86.1 | All supported architectures |
Related bugreports: #96960
Clam AntiVirus is vulnerable to a Denial of Service attack when processing certain Quantum archives.
Clam AntiVirus is a GPL anti-virus toolkit, designed for integration with mail servers to perform attachment scanning. Clam AntiVirus also provides a command line scanner and a tool for fetching updates of the virus database.
Andrew Toller and Stefan Kanthak discovered that a flaw in libmspack's Quantum archive decompressor renders Clam AntiVirus vulnerable to a Denial of Service attack.
A remote attacker could exploit this vulnerability to cause a Denial of Service by sending a specially crafted Quantum archive to the server.
There is no known workaround at this time.
All Clam AntiVirus users should upgrade to the latest available version:
Code Listing 3.1: Resolution |
# emerge --sync # emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.86.1" |