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TITLE:
PECL zip Extension URL Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA24471

VERIFY ADVISORY:
http://secunia.com/advisories/24471/

CRITICAL:
Moderately critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
PECL zip Extension 1.x
http://secunia.com/product/13624/

DESCRIPTION:
Stefan Esser has reported a vulnerability in the PECL zip Extension,
which can be exploited by malicious people to compromise a user's
system.

The vulnerability is caused due to a boundary error within the
handling of "zip:"  URLs. This can be exploited to cause a
stack-based buffer overflow by passing a specially crafted long
string to the "zip:" URL wrapper.

Successful exploitation allows the execution of arbitrary code.

The vulnerability is reported in versions prior to 1.8.4.

SOLUTION:
Update to version 1.8.4.

PROVIDED AND/OR DISCOVERED BY:
Stefan Esser

ORIGINAL ADVISORY:
http://www.php-security.org/MOPB/MOPB-16-2007.html

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