[SA34612] ClamAV UPack Denial of Service and "cli_url_canon()" Buffer Overflow

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TITLE:
ClamAV UPack Denial of Service and "cli_url_canon()" Buffer Overflow

SECUNIA ADVISORY ID:
SA34612

VERIFY ADVISORY:
http://secunia.com/advisories/34612/

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

1) An error in the processing of files packed with UPack can be
exploited to cause a crash.

2) A boundary error exists within the "cli_url_canon()" function in
libclamav/phishcheck.c. This can be exploited to cause a buffer
overflow via specially crafted URLs.

The vulnerabilities are reported in versions prior 0.95.1.

SOLUTION:
Update to version 0.95.1.

PROVIDED AND/OR DISCOVERED BY:
1) The vendor credits Martin Olsen
2) The vendor credits Nigel

ORIGINAL ADVISORY:
https://wwws.clamav.net/bugzilla/show_bug.cgi?id=1552
https://wwws.clamav.net/bugzilla/show_bug.cgi?id=1553

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