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CVE-2013-3735

Published: 31 May 2013

** 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."

Notes

AuthorNote
seth-arnold
PHP interpreter crashes are outside scope of PHP's security model,
OS-provided controls must be used to separate untrusted users' code.

Priority

Negligible

Status

Package Release Status
php5
Launchpad, Ubuntu, Debian
lucid Ignored
(end of life)
precise Ignored
(end of life)
quantal Ignored
(end of life)
raring Ignored
(end of life)
upstream
Released (5.4.16rc1, 5.5.0-rc2)
Patches:
upstream: https://github.com/php/php-src/commit/fb58e69a84f4fde603a630d2c9df2fa3be16d846