Use After Free Affecting php-bcmath package, versions *
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-CENTOS7-PHPBCMATH-1971202
- published26 Jul 2021
- disclosed8 Dec 2016
Introduced: 8 Dec 2016
CVE-2016-9936 (opens in a new tab)How to fix?
There is no fixed version for Centos:7 php-bcmath.
NVD Description
Note: Versions mentioned in the description apply only to the upstream php-bcmath package and not the php-bcmath package as distributed by Centos.
See How to fix? for Centos:7 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://www.securityfocus.com/bid/94849
- https://bugs.php.net/bug.php?id=72978
- https://github.com/php/php-src/commit/b2af4e8868726a040234de113436c6e4f6372d17
- http://www.php.net/ChangeLog-7.php
- https://access.redhat.com/security/cve/CVE-2016-9936
- http://www.openwall.com/lists/oss-security/2016/12/12/2
- https://access.redhat.com/errata/RHSA-2018:1296
- http://lists.opensuse.org/opensuse-updates/2017-01/msg00034.html