[SA17434] Clam AntiVirus TNEF/CAB/FSG File Handling Vulnerabilities

TITLE:
Clam AntiVirus TNEF/CAB/FSG File Handling Vulnerabilities

SECUNIA ADVISORY ID:
SA17434

VERIFY ADVISORY:
http://secunia.com/advisories/17434/

CRITICAL:
Moderately critical

IMPACT:
Unknown, DoS

WHERE:
>From remote

SOFTWARE:
Clam AntiVirus (clamav) 0.x
http://secunia.com/product/2538/

DESCRIPTION:
Some vulnerabilities have been reported in Clam AntiVirus (clamav),
which potentially can be exploited by malicious people to cause a DoS
(Denial of Service), or with unknown impact.

1) A buffer size calculation error in "libclamav/fsg.c" when handling
a FSG compressed executable file may be exploited with an unknown
impact.

2) An unspecified error in "libclamav/tnef.c" may be exploited to
cause an infinite loop, potentially causing a DoS via a specially
crafted TNEF file.

3) An unspecified error in "libclamav/mspack/cabd.c" may be exploited
to cause an infinite loop, potentially causing a DoS via a specially
crafted CAB file.

The vulnerabilities have been reported in versions 0.87 and prior.

SOLUTION:
Update to version 0.87.1.
http://sourceforge.net/project/showfiles.php?group_id=86638

PROVIDED AND/OR DISCOVERED BY:
1) Reported by Zero Day Initiative.
2-3) Reported by iDEFENSE.

---

About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/

Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.