Critical severity · published Jan 12, 2017
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
9.8
CVSS
41.7%
EPSS
No
On KEV
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 vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)41.7% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PH
PHP · PHP
7.0.0; 7.0.1; 7.0.2; 7.0.3; 7.0.4; 7.0.5; +9 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-7479
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-7479
Third Party Advisory
http://blog.checkpoint.com/2016/12/27/check-point-discovers-three-zero-day-vulnerabilities-web-programming-language-php-7
Exploit
http://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdf
Third Party Advisory
http://www.securityfocus.com/bid/95151
www.securitytracker.com
http://www.securitytracker.com/id/1037659
access.redhat.com
https://access.redhat.com/errata/RHSA-2018:1296
Issue Tracking
https://bugs.php.net/bug.php?id=73092
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