GLSA Advocate
Joined: 12 May 2004 Posts: 2663
|
Posted: Tue Aug 29, 2006 3:26 pm Post subject: [ GLSA 200608-28 ] PHP: Arbitary code execution |
|
|
Gentoo Linux Security Advisory
Title: PHP: Arbitary code execution (GLSA 200608-28)
Severity: normal
Exploitable: remote
Date: August 29, 2006
Updated: March 29, 2008
Bug(s): #143126
ID: 200608-28
Synopsis
PHP contains a function that, when used, could allow a remote attacker to execute arbitrary code.
Background
PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML.
Affected Packages
Package: dev-lang/php
Vulnerable: < 5.1.4-r6
Unaffected: >= 4.4.3-r1 < 4.4.4
Unaffected: >= 4.4.4-r4 < 4.4.5
Unaffected: >= 4.4.6 < 4.4.7
Unaffected: >= 4.4.7 < 4.4.8
Unaffected: >= 4.4.8_pre20070816 < 4.4.9
Unaffected: >= 5.1.4-r6
Architectures: All supported architectures
Description
The sscanf() PHP function contains an array boundary error that can be exploited to dereference a null pointer. This can possibly allow the bypass of the safe mode protection by executing arbitrary code.
Impact
A remote attacker might be able to exploit this vulnerability in PHP applications making use of the sscanf() function, potentially resulting in the execution of arbitrary code or the execution of scripted contents in the context of the affected site.
Workaround
There is no known workaround at this time.
Resolution
All PHP 4.x users should upgrade to the latest version: Code: | # emerge --sync
# emerge --ask --oneshot --verbose ">=dev-lang/php-4.4.3-r1" | All PHP 5.x users should upgrade to the latest version: Code: | # emerge --sync
# emerge --ask --oneshot --verbose ">=dev-lang/php-5.1.4-r6" |
References
CVE-2006-4020
Last edited by GLSA on Sat Mar 29, 2008 4:18 am; edited 4 times in total |
|