VulnerabilityModified
CVE-2016-7479
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.
CRITICAL 9.8EPSS 41.9%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 41.9%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 41.94% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- php/php
- Source
- cve@checkpoint.com
References
- http://blog.checkpoint.com/2016/12/27/check-point-discovers-three-zero-day-vulnerabilities-web-programming-language-php-7Third Party Advisory
- http://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdfExploit, Technical Description, Third Party Advisory
- http://www.securityfocus.com/bid/95151Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037659
- https://access.redhat.com/errata/RHSA-2018:1296
- https://bugs.php.net/bug.php?id=73092Issue Tracking, Permissions Required
- https://security.netapp.com/advisory/ntap-20180112-0001/
- https://www.youtube.com/watch?v=LDcaPstAuPkTechnical Description
- http://blog.checkpoint.com/2016/12/27/check-point-discovers-three-zero-day-vulnerabilities-web-programming-language-php-7Third Party Advisory
- http://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdfExploit, Technical Description, Third Party Advisory
- http://www.securityfocus.com/bid/95151Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037659
- https://access.redhat.com/errata/RHSA-2018:1296
- https://bugs.php.net/bug.php?id=73092Issue Tracking, Permissions Required
- https://security.netapp.com/advisory/ntap-20180112-0001/
- https://www.youtube.com/watch?v=LDcaPstAuPkTechnical Description
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.