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TITLE:
PicoZip "zipinfo.dll" Multiple Archives Buffer Overflow

SECUNIA ADVISORY ID:
SA20481

VERIFY ADVISORY:
http://secunia.com/advisories/20481/

CRITICAL:
Moderately critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
PicoZip 4.x
http://secunia.com/product/10466/

DESCRIPTION:
Secunia Research has discovered a vulnerability in PicoZip, which can
be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error within the
"zipinfo.dll" info tip shell extension when reading a ACE, RAR, or
ZIP archive that contains a file with an overly long filename. This
can be exploited to cause a stack-based buffer overflow when the user
moves the mouse cursor over a malicious archive either in Windows
Explorer or from any program that uses the file-open dialog box.

Successful exploitation allows arbitrary code execution.

The vulnerability has been confirmed in version 4.01. Prior versions
may also be affected.

SOLUTION:
Update to version 4.02.
http://www.picozip.com/downloads.html

PROVIDED AND/OR DISCOVERED BY:
Tan Chew Keong, Secunia Research

ORIGINAL ADVISORY:
Secunia Research:
http://secunia.com/secunia_research/2006-42/advisory/

Acubix:
http://www.picozip.com/changelog.html

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