Use After Free Affecting rh-php56-php-mbstring package, versions <0:5.6.25-1.el7
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-RHEL7-RHPHP56PHPMBSTRING-4690937
- published26 Jul 2021
- disclosed23 Jun 2016
Introduced: 23 Jun 2016
CVE-2016-5768 (opens in a new tab)How to fix?
Upgrade RHEL:7 rh-php56-php-mbstring to version 0:5.6.25-1.el7 or higher.
This issue was patched in RHSA-2016:2750.
NVD Description
Note: Versions mentioned in the description apply only to the upstream rh-php56-php-mbstring package and not the rh-php56-php-mbstring package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
Double free vulnerability in the _php_mb_regex_ereg_replace_exec function in php_mbregex.c in the mbstring extension in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) by leveraging a callback exception.
References
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
- http://www.securityfocus.com/bid/91396
- http://github.com/php/php-src/commit/5b597a2e5b28e2d5a52fc1be13f425f08f47cb62?w=1
- http://php.net/ChangeLog-5.php
- http://php.net/ChangeLog-7.php
- https://bugs.php.net/bug.php?id=72402
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
- https://support.apple.com/HT207170
- https://access.redhat.com/security/cve/CVE-2016-5768
- http://www.debian.org/security/2016/dsa-3618
- http://www.openwall.com/lists/oss-security/2016/06/23/4
- http://rhn.redhat.com/errata/RHSA-2016-2598.html
- http://rhn.redhat.com/errata/RHSA-2016-2750.html
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00004.html
- http://lists.opensuse.org/opensuse-updates/2016-08/msg00003.html