Buffer overflow in PHP - CVE-2011-1464

Vulnerability identifier: #VU45183

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2011-1464

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

Buffer overflow in the strval function in PHP before 5.3.6, when the precision configuration option has a large value, might allow context-dependent attackers to cause a denial of service (application crash) via a small numerical value in the argument.

PHP
Gentoo Linux
Ubuntu
php5-common (Ubuntu package)
php5-cli (Ubuntu package)
php5 (Ubuntu package)
php-pear (Ubuntu package)
php5-gd (Ubuntu package)
libapache2-mod-php5 (Ubuntu package)
php5-curl (Ubuntu package)
php5-cgi (Ubuntu package)
php5-dev (Ubuntu package)
php5-intl (Ubuntu package)
dev-lang/php

Install update from vendor's website.

php5-common (Ubuntu package) - addressed in versions 5.1.2-1ubuntu3.22, 5.2.4-2ubuntu5.15, 5.2.10.dfsg.1-2ubuntu6.9, 5.3.2-1ubuntu4.8, 5.3.3-1ubuntu9.4, 5.3.5-1ubuntu7.1
php5-cli (Ubuntu package) - addressed in versions 5.1.2-1ubuntu3.22, 5.2.4-2ubuntu5.15, 5.2.10.dfsg.1-2ubuntu6.9, 5.3.2-1ubuntu4.8, 5.3.3-1ubuntu9.4, 5.3.5-1ubuntu7.1
php5 (Ubuntu package) - addressed in versions 5.1.2-1ubuntu3.22, 5.2.4-2ubuntu5.15, 5.2.10.dfsg.1-2ubuntu6.9, 5.3.2-1ubuntu4.8, 5.3.3-1ubuntu9.4, 5.3.5-1ubuntu7.1
php-pear (Ubuntu package) - addressed in versions 5.1.2-1ubuntu3.22, 5.2.4-2ubuntu5.15, 5.2.10.dfsg.1-2ubuntu6.9, 5.3.2-1ubuntu4.8, 5.3.3-1ubuntu9.4, 5.3.5-1ubuntu7.1
php5-gd (Ubuntu package) - addressed in versions 5.1.2-1ubuntu3.22, 5.2.4-2ubuntu5.15, 5.2.10.dfsg.1-2ubuntu6.9, 5.3.2-1ubuntu4.8, 5.3.3-1ubuntu9.4, 5.3.5-1ubuntu7.1
libapache2-mod-php5 (Ubuntu package) - addressed in versions 5.1.2-1ubuntu3.22, 5.2.4-2ubuntu5.15, 5.2.10.dfsg.1-2ubuntu6.9, 5.3.2-1ubuntu4.8, 5.3.3-1ubuntu9.4, 5.3.5-1ubuntu7.1
php5-curl (Ubuntu package) - addressed in versions 5.1.2-1ubuntu3.22, 5.2.4-2ubuntu5.15, 5.2.10.dfsg.1-2ubuntu6.9, 5.3.2-1ubuntu4.8, 5.3.3-1ubuntu9.4, 5.3.5-1ubuntu7.1
php5-cgi (Ubuntu package) - addressed in versions 5.1.2-1ubuntu3.22, 5.2.4-2ubuntu5.15, 5.2.10.dfsg.1-2ubuntu6.9, 5.3.2-1ubuntu4.8, 5.3.3-1ubuntu9.4, 5.3.5-1ubuntu7.1
php5-dev (Ubuntu package) - addressed in versions 5.1.2-1ubuntu3.22, 5.2.4-2ubuntu5.15, 5.2.10.dfsg.1-2ubuntu6.9, 5.3.2-1ubuntu4.8, 5.3.3-1ubuntu9.4, 5.3.5-1ubuntu7.1
php5-intl (Ubuntu package) - addressed in versions 5.3.2-1ubuntu4.8, 5.3.3-1ubuntu9.4, 5.3.5-1ubuntu7.1
dev-lang/php - update to 5.3.8

• http://bugs.php.net/bug.php?id=54055
• http://marc.info/?l=bugtraq&m=133469208622507&w=2
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:052
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:053
• http://www.php.net/archive/2011.php
• http://www.php.net/ChangeLog-5.php
• http://www.php.net/releases/5_3_6.php
• http://www.vupen.com/english/advisories/2011/0744

• Multiple vulnerabilities in PHP
• Gentoo update for PHP
• Ubuntu update for php5