CVE-2015-6835
CRITICAL
9.8
CVSS 3.0
Description
The session deserializer in PHP before 5.4.45, 5.5.x before 5.5.29, and 5.6.x before 5.6.13 mishandles multiple php_var_unserialize calls, which allow remote attackers to execute arbitrary code or cause a denial of service (use-after-free) via crafted session content.
Affected products and versions
- PHP — Up to and including 5.4.44
- PHP versions 5.5.0, 5.5.0alpha1, 5.5.0alpha2, 5.5.0alpha3, 5.5.0alpha4, 5.5.0alpha5, 5.5.0alpha6, 5.5.0beta1, 5.5.0beta2, 5.5.0beta3, 5.5.0beta4, 5.5.0rc1, 5.5.0rc2, 5.5.1, 5.5.2, 5.5.3, 5.5.4, 5.5.5, 5.5.6, 5.5.7, 5.5.8, 5.5.9, 5.5.10, 5.5.11, 5.5.12, 5.5.13, 5.5.14, 5.5.15, 5.5.16, 5.5.17, 5.5.18, 5.5.19, 5.5.20, 5.5.21, 5.5.22, 5.5.23, 5.5.24, 5.5.25, 5.5.26, 5.5.27, 5.5.28, 5.6.0alpha1, 5.6.0alpha2, 5.6.0alpha3, 5.6.0alpha4, 5.6.0alpha5, 5.6.0beta1, 5.6.0beta2, 5.6.0beta3, 5.6.0beta4, 5.6.1, 5.6.2, 5.6.3, 5.6.4, 5.6.5, 5.6.6, 5.6.7, 5.6.8, 5.6.9, 5.6.10, 5.6.11, 5.6.12
References
- php.net http://php.net/ChangeLog-5.php
- www.debian.org http://www.debian.org/security/2015/dsa-3358
- www.securityfocus.com http://www.securityfocus.com/bid/76734
- www.securitytracker.com http://www.securitytracker.com/id/1033548
- bugs.php.net https://bugs.php.net/bug.php?id=70219
- security.gentoo.org https://security.gentoo.org/glsa/201606-10
- nvd.nist.gov Official NVD record