Title: ClamAV BZ_GET_FAST Bzip2 Decompression Vulnerability
Severity: HIGH
Description:
ClamAV is a multiplatform antivirus toolkit used to scan email messages for viruses.
ClamAV is prone to a vulnerability due to a flaw in its Bzip2 decompression support.
Specifically, this issue stems from a flaw in the 'BZ_GET_FAST' macro, which is used when decompressing Bzip2 files.
Successful exploits of this vulnerability may potentially allow remote attackers to execute arbitrary code in the context of the vulnerable application or to trigger denial-of-service conditions. These effects have not been confirmed.
No further technical details are currently available. We will update this BID as more information emerges.
ClamAV 0.91.2 is vulnerable to this issue; other versions may also be affected.
Affected Products:
- Apple Mac OS X Server 10.5
- Apple Mac OS X Server 10.5.1
- Apple Mac OS X Server 10.5.2
- Clam Anti-Virus ClamAV 0.91.2
- Gentoo Linux
- Kolab Groupware Server 2.1.beta3
- Kolab Kolab Groupware Server 2.0.1
- Kolab Kolab Groupware Server 2.0.2
- Kolab Kolab Groupware Server 2.0.3
- Kolab Kolab Groupware Server 2.0.4
- Kolab Kolab Groupware Server 2.1.0
- Kolab Kolab Groupware Server 2.1beta2
- Kolab Kolab Groupware Server 2.2beta1
- Kolab Kolab Groupware Server 2.2beta3
- Linux kernel 2.4.19
- Linux kernel 2.4.21
- MandrakeSoft Corporate Server 3.0.0
- MandrakeSoft Corporate Server 3.0.0 x86_64
- MandrakeSoft Corporate Server 4.0
- MandrakeSoft Corporate Server 4.0.0 x86_64
- MandrakeSoft Linux Mandrake 2007.0
- MandrakeSoft Linux Mandrake 2007.0 x86_64
- MandrakeSoft Linux Mandrake 2007.1
- MandrakeSoft Linux Mandrake 2007.1 x86_64
- MandrakeSoft Linux Mandrake 2008.0
- MandrakeSoft Linux Mandrake 2008.0 x86_64
- RedHat Fedora 7
- RedHat Fedora 8
- S.u.S.E. Linux 10.0 ppc
- S.u.S.E. Linux 10.0 x86
- S.u.S.E. Linux 10.0 x86-64
- S.u.S.E. Linux 10.1 ppc
- S.u.S.E. Linux 10.1 x86
- S.u.S.E. Linux 10.1 x86-64
- S.u.S.E. Linux Desktop 10
- S.u.S.E. Linux Enterprise Server 10.SP1
- S.u.S.E. Linux Enterprise Server 8
- S.u.S.E. Novell Linux Desktop 9
- S.u.S.E. Novell Linux Desktop 9.0.0
- S.u.S.E. Novell Linux Desktop SDK 9.0.0
- S.u.S.E. Novell Linux POS 9
- S.u.S.E. Open-Enterprise-Server
- S.u.S.E. SUSE Linux Enterprise Desktop 10
- S.u.S.E. SUSE Linux Enterprise Desktop 10 SP1
- S.u.S.E. SuSE Linux Openexchange Server 4.0.0
- S.u.S.E. UnitedLinux 1.0.0
- S.u.S.E. openSUSE 10.2
- S.u.S.E. openSUSE 10.3
References:
- Clam Anti-Virus: ClamAV Homepage
- Clam AntiVirus: ClamAV Change Log
- Gentoo: Bugzilla Bug 202762
- Gentoo: libclamav/nsis/bzlib_private.h: fix bzlib bug (aCaB)
- Kolab: Kolab Security Issue 18 20080109
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