CVE-2016-6290

high-risk
Published 2016-07-25

ext/session/session.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 does not properly maintain a certain hash data structure, which allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact via vectors related to session deserialization.

Do I need to act?

~
8.4% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (20)

Php
Php
Php
Php
Php
Php
Php
Php
Php
Php
Php
Php
Php
Php
Php
Php
Php
Php
Php
Php

Affected Vendors

Php

References (24)

http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=3798eb6fd5dddb211b01d41495072fd...
http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
Mailing List http://openwall.com/lists/oss-security/2016/07/24/2
Release Notes http://php.net/ChangeLog-5.php
http://php.net/ChangeLog-7.php
http://rhn.redhat.com/errata/RHSA-2016-2750.html
http://www.debian.org/security/2016/dsa-3631
Third Party Advisory http://www.securityfocus.com/bid/92097
http://www.securitytracker.com/id/1036430
Issue Tracking https://bugs.php.net/72562
https://security.gentoo.org/glsa/201611-22
https://support.apple.com/HT207170
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=3798eb6fd5dddb211b01d41495072fd...
http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
Mailing List http://openwall.com/lists/oss-security/2016/07/24/2
Release Notes http://php.net/ChangeLog-5.php
http://php.net/ChangeLog-7.php
http://rhn.redhat.com/errata/RHSA-2016-2750.html
http://www.debian.org/security/2016/dsa-3631
Third Party Advisory http://www.securityfocus.com/bid/92097
and 4 more references
66
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 10/34 · Low
Exposure 24/34 · High