CVE-2016-9936
CRITICAL severity · CVSS 9.8 · Use-after-free
9.8CVSS CRITICAL
Summary
The unserialize implementation in ext/standard/var.c in PHP 7.x before 7.0.14 allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact via crafted serialized data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-6834.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)4%
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: http://www.php.net/ChangeLog-7.php ↗
Additional information
- NVD record
- http://www.php.net/ChangeLog-7.phpPatch
- https://github.com/php/php-src/commit/b2af4e8868726a040234de113436c6e4f6372d17Patch
- http://lists.opensuse.org/opensuse-updates/2017-01/msg00034.html
- http://www.openwall.com/lists/oss-security/2016/12/12/2
- http://www.securityfocus.com/bid/94849
- https://access.redhat.com/errata/RHSA-2018:1296
- https://bugs.php.net/bug.php?id=72978Exploit