CVE-2013-3735

MEDIUM

Description

** DISPUTED ** The Zend Engine in PHP before 5.4.16 RC1, and 5.5.0 before RC2, does not properly determine whether a parser error occurred, which allows context-dependent attackers to cause a denial of service (memory consumption and application crash) via a crafted function definition, as demonstrated by an attack within a shared web-hosting environment. NOTE: the vendor's http://php.net/security-note.php page says "for critical security situations you should be using OS-level security by running multiple web servers each as their own user id."

References

https://bugs.php.net/bug.php?id=64660

https://github.com/php/php-src/blob/php-5.4.16RC1/NEWS

https://github.com/php/php-src/blob/php-5.5.0RC2/NEWS

https://github.com/php/php-src/commit/fb58e69a84f4fde603a630d2c9df2fa3be16d846

Details

Source: MITRE

Published: 2013-05-31

Updated: 2013-06-03

Type: CWE-20

Risk Information

CVSS v2.0

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM