Joined: 12 May 2004
|Posted: Mon Sep 19, 2005 8:51 am Post subject: [ GLSA 200509-13 ] Clam AntiVirus: Multiple vulnerabilities
|Gentoo Linux Security Advisory
Title: Clam AntiVirus: Multiple vulnerabilities (GLSA 200509-13)
Date: September 19, 2005
Clam AntiVirus is subject to vulnerabilities ranging from Denial of Service to execution of arbitrary code when handling compressed executables.
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.
Vulnerable: < 0.87
Unaffected: >= 0.87
Architectures: All supported architectures
Clam AntiVirus is vulnerable to a buffer overflow in "libclamav/upx.c" when processing malformed UPX-packed executables. It can also be sent into an infinite loop in "libclamav/fsg.c" when processing specially-crafted FSG-packed executables.
By sending a specially-crafted file an attacker could execute arbitrary code with the permissions of the user running Clam AntiVirus, or cause a Denial of Service.
There is no known workaround at this time.
All Clam AntiVirus users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.87"
Clam AntiVirus: Release Notes
Last edited by GLSA on Sun May 07, 2006 4:58 pm; edited 1 time in total