Out-of-bounds Read Affecting rh-php70-php-opcache package, versions <0:7.0.27-1.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-RHPHP70PHPOPCACHE-4743364
- published26 Jul 2021
- disclosed16 Feb 2017
Introduced: 16 Feb 2017
CVE-2017-12933 (opens in a new tab)How to fix?
Upgrade RHEL:7 rh-php70-php-opcache to version 0:7.0.27-1.el7 or higher.
This issue was patched in RHSA-2018:1296.
NVD Description
Note: Versions mentioned in the description apply only to the upstream rh-php70-php-opcache package and not the rh-php70-php-opcache package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
The finish_nested_data function in ext/standard/var_unserializer.re in PHP before 5.6.31, 7.0.x before 7.0.21, and 7.1.x before 7.1.7 is prone to a buffer over-read while unserializing untrusted data. Exploitation of this issue can have an unspecified impact on the integrity of PHP.
References
- http://www.securityfocus.com/bid/99490
- http://php.net/ChangeLog-5.php
- http://php.net/ChangeLog-7.php
- https://bugs.php.net/bug.php?id=74111
- https://access.redhat.com/security/cve/CVE-2017-12933
- https://www.debian.org/security/2018/dsa-4080
- https://www.debian.org/security/2018/dsa-4081
- https://access.redhat.com/errata/RHSA-2018:1296
- https://usn.ubuntu.com/3566-1/
- https://usn.ubuntu.com/3566-2/