Description

Use-after-free vulnerability in the process_nested_data function in ext/standard/var_unserializer.re in PHP before 5.4.36, 5.5.x before 5.5.20, and 5.6.x before 5.6.4 allows remote attackers to execute arbitrary code via a crafted unserialize call that leverages improper handling of duplicate keys within the serialized properties of an object, a different vulnerability than CVE-2004-1019.

References

http://git.php.net/?p=php-src.git;a=commit;h=630f9c33c23639de85c3fd306b209b538b73b4c9

http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00029.html

http://lists.opensuse.org/opensuse-updates/2015-02/msg00079.html

http://marc.info/?l=bugtraq&m=143403519711434&w=2

http://marc.info/?l=bugtraq&m=143748090628601&w=2

http://marc.info/?l=bugtraq&m=144050155601375&w=2

http://php.net/ChangeLog-5.php

http://rhn.redhat.com/errata/RHSA-2015-1053.html

http://rhn.redhat.com/errata/RHSA-2015-1066.html

http://rhn.redhat.com/errata/RHSA-2015-1135.html

http://www.debian.org/security/2014/dsa-3117

http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html

http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html

http://www.securityfocus.com/bid/71791

https://bugs.php.net/bug.php?id=68594

https://bugzilla.redhat.com/show_bug.cgi?id=1175718

https://security.gentoo.org/glsa/201503-03

Details

Risk Information

CVSS v2