TITLE:
PHP Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA18431

VERIFY ADVISORY:
http://secunia.com/advisories/18431/

CRITICAL:
Less critical

IMPACT:
Cross Site Scripting, System access

WHERE:
>From remote

SOFTWARE:
PHP 5.1.x
http://secunia.com/product/6796/
PHP 5.0.x
http://secunia.com/product/3919/

DESCRIPTION:
Some vulnerabilities have been reported in PHP, which can be
exploited by malicious people to conduct HTTP response splitting
attacks, potentially conduct cross-site scripting attacks, and
potentially compromise a vulnerable system.

1) Input passed to the session ID in the session extension isn't
properly sanitised before being returned to the user via a
"Set-Cookie" HTTP header. This can be exploited to inject arbitrary
HTTP headers, which will be included in the response sent to the
user.

The vulnerability has been reported in versions 5.x through 5.1.1.

2) A format string error in the processing of error messages in the
mysqli extension may be exploited to execute arbitrary code by
causing an exception in an application where the error message can be
controlled by the attacker (e.g. when connecting to a database server
with a malicious, invalid hostname).

Successful exploitation requires that certain conditions are met.

The vulnerability has been reported in versions 5.1.x through 5.1.1.

3) Some unspecified input passed under certain error conditions isn't
properly sanitised before being returned to the user. This may be
exploited to execute arbitrary HTML and script code in a user's
browser session in context of an affected site.

SOLUTION:
Update to version 5.1.2.
http://www.php.net/downloads.php

PROVIDED AND/OR DISCOVERED BY:
1, 2) Stefan Esser, Hardened-PHP Project
3) Reported by the vendor

ORIGINAL ADVISORY:
Hardened-PHP Project:
http://www.hardened-php.net/advisory_012006.112.html
http://www.hardened-php.net/advisory_022006.113.html

The PHP Group:
http://www.php.net/release_5_1_2.php

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