CVE-2016-10161

HIGH severity · CVSS 7.5 · Out-of-bounds read

7.5CVSS HIGH

Summary

The object_common1 function in ext/standard/var_unserializer.c in PHP before 5.6.30, 7.0.x before 7.0.15, and 7.1.x before 7.1.1 allows remote attackers to cause a denial of service (buffer over-read and application crash) via crafted serialized data that is mishandled in a finish_nested_data call.

Impact & exploitability

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

Confidentiality impactNone

Integrity impactNone

Availability impactHigh

Exploit probability (EPSS)21%

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products we track (1)

PHP

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Official patch: https://github.com/php/php-src/commit/16b3003ffc6393e250f069aa28a78dc5a2c064b2 ↗

Additional information

NVD record
https://github.com/php/php-src/commit/16b3003ffc6393e250f069aa28a78dc5a2c064b2Patch
http://php.net/ChangeLog-5.phpAdvisory
http://php.net/ChangeLog-7.phpAdvisory
http://www.debian.org/security/2017/dsa-3783
http://www.securityfocus.com/bid/95768Advisory
http://www.securitytracker.com/id/1037659
https://access.redhat.com/errata/RHSA-2018:1296
https://bugs.php.net/bug.php?id=73825