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TITLE:
PHP Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA37821

VERIFY ADVISORY:
http://secunia.com/advisories/37821/

DESCRIPTION:
Multiple vulnerabilities have been reported in PHP, some of which
have unknown impacts and others that can be exploited by malicious
users to bypass certain security restrictions and by malicious people
to conduct cross-site scripting attacks and cause a DoS (Denial of
Service).

1) An error in "tempnam()" can be exploited to bypass the "safe_mode"
feature.

2) An error in "posix_mkfifo()" can be exploited to bypass the
"open_basedir" feature.

3) An error within the processing of form-based file uploads can be
exploited to cause a DoS by sending specially crafted requests.

4) Errors related to a insufficient protection of $_SESSION against
interrupt corruption and a weak "session.save_path" check have
unknown impacts.

5) The "htmlspecialchars()" function does not properly sanitise
certain input, which can be exploited to conduct cross-site scripting
attacks.

The vulnerabilities are reported in versions prior to 5.2.12.

SOLUTION:
Update to version 5.2.12.

PROVIDED AND/OR DISCOVERED BY:
1, 2) Grzegorz Stachowiak
3) Bogdan Calin, Acunetix
4) Stefan Esser
5) Moriyoshi

ORIGINAL ADVISORY:
PHP:
http://www.php.net/releases/5_2_12.php
http://bugs.php.net/bug.php?id=49785

Grzegorz Stachowiak:
http://securityreason.com/securityalert/6600
http://securityreason.com/securityalert/6601

Acunetix:
http://www.acunetix.com/blog/web...partform-data-denial-of-service/

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