Use After Free Affecting php7.0 package, versions <7.0.15-0ubuntu0.16.04.2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1604-PHP70-386503
- published4 Jan 2017
- disclosed4 Jan 2017
Introduced: 4 Jan 2017
CVE-2016-9936 (opens in a new tab)How to fix?
Upgrade Ubuntu:16.04 php7.0 to version 7.0.15-0ubuntu0.16.04.2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream php7.0 package and not the php7.0 package as distributed by Ubuntu.
See How to fix? for Ubuntu:16.04 relevant fixed versions and status.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-9936
- https://bugs.php.net/bug.php?id=72978
- http://www.php.net/ChangeLog-7.php
- https://security-tracker.debian.org/tracker/CVE-2016-9936
- https://github.com/php/php-src/commit/b2af4e8868726a040234de113436c6e4f6372d17
- http://lists.opensuse.org/opensuse-updates/2017-01/msg00034.html
- http://www.openwall.com/lists/oss-security/2016/12/12/2
- https://access.redhat.com/errata/RHSA-2018:1296
- http://www.securityfocus.com/bid/94849