Description
In all versions of PHP 7, during the unserialization process, resizing the 'properties' hash table of a serialized object may lead to use-after-free. A remote attacker may exploit this bug to gain arbitrary code execution.
References (8)
Core 8
Core References
Exploit, Technical Description, Third Party Advisory x_refsource_misc
http://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdf
Technical Description x_refsource_misc
https://www.youtube.com/watch?v=LDcaPstAuPk
Issue Tracking, Permissions Required x_refsource_misc
https://bugs.php.net/bug.php?id=73092
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:1296
Vendor Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20180112-0001/
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/95151
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1037659
Third Party Advisory x_refsource_misc
http://blog.checkpoint.com/2016/12/27/check-point-discovers-three-zero-day-vulnerabilities-web-programming-language-php-7
Scores
CVSS v3
9.8
EPSS
0.2163
EPSS Percentile
95.8%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-416
Status
published
Products (16)
n/a/PHP 7.x
PHP 7.x
php/php
7.0.0
php/php
7.0.1
php/php
7.0.2
php/php
7.0.3
php/php
7.0.4
php/php
7.0.5
php/php
7.0.6
php/php
7.0.7
php/php
7.0.8
... and 6 more
Published
Jan 12, 2017
Tracked Since
Feb 18, 2026