CVE-2016-7480

moderate-risk
Published 2017-01-11

The SplObjectStorage unserialize implementation in ext/spl/spl_observer.c in PHP before 7.0.12 does not verify that a key is an object, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized memory access) via crafted serialized data.

Do I need to act?

~
3.6% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
+
Fix available
Upgrade to: e2874f7bf990ed58ba6f7abccefa2c00a0447fc7, 61cdd1255d5b9c8453be71aacbbf682796ac77d4
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (2)

Php

Affected Vendors

Php Netapp

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
Release Notes http://php.net/ChangeLog-7.php
Third Party Advisory http://www.securityfocus.com/bid/95152
Issue Tracking https://bugs.php.net/bug.php?id=73257
Patch https://github.com/php/php-src/commit/61cdd1255d5b9c8453be71aacbbf682796ac77d4
Third Party Advisory https://security.netapp.com/advisory/ntap-20180112-0001/
Broken Link 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
Release Notes http://php.net/ChangeLog-7.php
Third Party Advisory http://www.securityfocus.com/bid/95152
Issue Tracking https://bugs.php.net/bug.php?id=73257
Patch https://github.com/php/php-src/commit/61cdd1255d5b9c8453be71aacbbf682796ac77d4
Third Party Advisory https://security.netapp.com/advisory/ntap-20180112-0001/
Broken Link https://www.youtube.com/watch?v=LDcaPstAuPk
46
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 7/34 · Low
Exposure 7/34 · Low