CVE-2016-7479

high-risk
Published 2017-01-12

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.

Do I need to act?

!
20.2% chance of exploitation in next 30 days
EPSS score — higher than 80% of all CVEs
-
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 (15)

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

Affected Vendors

Php

References (16)

Third Party Advisory http://blog.checkpoint.com/2016/12/27/check-point-discovers-three-zero-day-vulne...
Exploit http://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdf
Third Party Advisory http://www.securityfocus.com/bid/95151
http://www.securitytracker.com/id/1037659
https://access.redhat.com/errata/RHSA-2018:1296
Issue Tracking https://bugs.php.net/bug.php?id=73092
https://security.netapp.com/advisory/ntap-20180112-0001/
Technical Description https://www.youtube.com/watch?v=LDcaPstAuPk
Third Party Advisory http://blog.checkpoint.com/2016/12/27/check-point-discovers-three-zero-day-vulne...
Exploit http://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdf
Third Party Advisory http://www.securityfocus.com/bid/95151
http://www.securitytracker.com/id/1037659
https://access.redhat.com/errata/RHSA-2018:1296
Issue Tracking https://bugs.php.net/bug.php?id=73092
https://security.netapp.com/advisory/ntap-20180112-0001/
Technical Description https://www.youtube.com/watch?v=LDcaPstAuPk
64
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 14/34 · Moderate
Exposure 18/34 · Moderate