PHP str[c]spn() integer overflow
| php-strcspn-overflow (36388) |  High Risk |
Description:
PHP is vulnerable to an integer overflow in the str[c]spn() function. A remote attacker could exploit this vulnerability using unknown attack vectors to execute arbitrary code on the system or cause the application to crash.
Platforms Affected:
- Canonical, Ubuntu 6.06 LTS
- Canonical, Ubuntu 6.10
- Canonical, Ubuntu 7.04
- Canonical, Ubuntu 7.10
- Debian, Debian Linux 4.0
- Gentoo, Linux
- PHP, PHP 5.0.0 Beta1
- PHP, PHP 5.0.0 Beta2
- PHP, PHP 5.0.0 Beta4
- PHP, PHP 5.0.0 RC1
- PHP, PHP 5.0.0 RC2
- PHP, PHP 5.0.0
- PHP, PHP 5.0.0 RC3
- PHP, PHP 5.0.0 Beta3
- PHP, PHP 5.0.1
- PHP, PHP 5.0.2
- PHP, PHP 5.0.3
- PHP, PHP 5.0.4
- PHP, PHP 5.0.5
- PHP, PHP 5.1.0
- PHP, PHP 5.1.1
- PHP, PHP 5.1.2
- PHP, PHP 5.1.3
- PHP, PHP 5.1.4
- PHP, PHP 5.1.5
- PHP, PHP 5.1.6
- PHP, PHP 5.2.0
- PHP, PHP 5.2.1
- PHP, PHP 5.2.2
- PHP, PHP 5.2.3
Remedy:
Upgrade to the latest version of PHP (5.2.4 or later), available from the PHP Web site. See References.
For other distributions:
Apply the appropriate update for your system. See References.
Consequences:
Gain Access
References:
- PHP Web site, PHP 5.2.4 Release Announcement at http://www.php.net/releases/5_2_4.php.
- CVE-2007-4657: Multiple integer overflows in PHP 4 before 4.4.8, and PHP 5 before 5.2.4, allow remote attackers to obtain sensitive information (memory contents) or cause a denial of service (thread crash) via a large len value to the (1) strspn or (2) strcspn function, which triggers an out-of-bounds read. NOTE: this affects different product versions than CVE-2007-3996.
- DSA-1444: php5 -- several vulnerabilities
- DSA-1578: php4 -- several vulnerabilities
- FrSIRT/ADV-2007-3023: PHP Multiple Function and Extension Code Execution and Security Bypass Issues
- GLSA-200710-02: PHP: Multiple vulnerabilities
- SA26442: Infrant ReadyNAS Devices SSH Default Root Password Weakness
- SA26642: PHP Multiple Vulnerabilities
- SA28318: PHP Multiple Vulnerabilities
- USN-549-1: PHP vulnerabilities
- USN-549-2: PHP regression
Reported:
Aug 30, 2007
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