Use After Free Affecting php-embedded package, versions <0:5.4.16-42.el7


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
10.54% (96th percentile)

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  • Snyk IDSNYK-RHEL7-PHPEMBEDDED-4650941
  • published26 Jul 2021
  • disclosed23 Jun 2016

Introduced: 23 Jun 2016

CVE-2016-5768  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:7 php-embedded to version 0:5.4.16-42.el7 or higher.
This issue was patched in RHSA-2016:2598.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php-embedded package and not the php-embedded 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.