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  Secunia CSI
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http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/


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TITLE:
Optimal Archive Error Handling Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA39154

VERIFY ADVISORY:
http://secunia.com/advisories/39154/

DESCRIPTION:
TecR0c has discovered a vulnerability in Optimal Archive, which can
be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error in the
"ALStatus::SetError()" function in OlArchive.dll when constructing
error messages. This can be exploited to cause a stack-based buffer
overflow by tricking a user into e.g. unpacking a ZIP archive
containing an entry with an overly long path.

Successful exploitation allows execution of arbitrary code.

The vulnerability is confirmed in version 1.10.1.138. Other versions
may also be affected.

SOLUTION:
Do not attempt to unpack untrusted archives.

PROVIDED AND/OR DISCOVERED BY:
TecR0c

Additional details provided by Secunia Research.

ORIGINAL ADVISORY:
http://www.corelan.be:8800/advisories.php?id=CORELAN-10-017

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