Clam AntiVirus: Multiple vulnerabilities
Gentoo Linux Security Advisory
||GLSA 200509-13 / clamav
||September 19, 2005
||September 19, 2005: 01
All supported architectures
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.
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:
Code Listing 3.1: Resolution
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.87"