Use After Free Affecting php55-php-mbstring package, versions *


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
5.36% (93rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-RHEL10-PHP55PHPMBSTRING-12228228
  • published29 Aug 2025
  • disclosed23 Sept 2016

Introduced: 23 Sep 2016

CVE-2016-9137  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:10 php55-php-mbstring.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php55-php-mbstring package and not the php55-php-mbstring package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

Use-after-free vulnerability in the CURLFile implementation in ext/curl/curl_file.c in PHP before 5.6.27 and 7.x before 7.0.12 allows remote attackers to cause a denial of service or possibly have unspecified other impact via crafted serialized data that is mishandled during __wakeup processing.