[ GLSA 200509-13 ] Clam AntiVirus: Multiple vulnerabilities

[GLSA]

Gentoo Linux Security Advisory

Title: Clam AntiVirus: Multiple vulnerabilities (GLSA 200509-13)
Severity: high
Exploitable: remote
Date: September 19, 2005
Bug(s): #106279
ID: 200509-13

Synopsis


Clam AntiVirus is subject to vulnerabilities ranging from Denial of Service
to execution of arbitrary code when handling compressed executables.


Background


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.


Affected Packages

Package: app-antivirus/clamav
Vulnerable: < 0.87
Unaffected: >= 0.87
Architectures: All supported architectures


Description


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.


Impact


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.


Workaround


There is no known workaround at this time.


Resolution


All Clam AntiVirus users should upgrade to the latest version: