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TITLE:
ClamAV UPX and FSG Handling Vulnerabilities

SECUNIA ADVISORY ID:
SA16848

VERIFY ADVISORY:
http://secunia.com/advisories/16848/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
>From remote

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

DESCRIPTION:
Two vulnerabilities have been reported in ClamAV, which can be
exploited by malicious people to cause a DoS (Denial of Service), or
potentially to compromise a vulnerable system.

1) A signedness error in "libclamav/upx.c" can potentially be
exploited to cause a buffer overflow when processing a malformed
UPX-compressed executable file.

2) An error in "libclamav/fsg.c" may cause an infinite loop when
processing a specially-crafted FSG-compressed executable file.

The vulnerabilities has been reported in version 0.86.2 and prior.

SOLUTION:
Update to version 0.87 or later.

PROVIDED AND/OR DISCOVERED BY:
Reported by vendor.

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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.

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