Use After Free Affecting flash-plugin package, versions <0:11.2.202.491-1.el6_6


Severity

Recommended
critical

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
74.13% (99th percentile)

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  • Snyk IDSNYK-RHEL6-FLASHPLUGIN-1497300
  • published26 Jul 2021
  • disclosed10 Jul 2015

Introduced: 10 Jul 2015

CVE-2015-5123  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:6 flash-plugin to version 0:11.2.202.491-1.el6_6 or higher.
This issue was patched in RHSA-2015:1235.

NVD Description

Note: Versions mentioned in the description apply only to the upstream flash-plugin package and not the flash-plugin package as distributed by RHEL. See How to fix? for RHEL:6 relevant fixed versions and status.

Use-after-free vulnerability in the BitmapData class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through 13.0.0.302 on Windows and OS X, 14.x through 18.0.0.203 on Windows and OS X, 11.x through 11.2.202.481 on Linux, and 12.x through 18.0.0.204 on Linux Chrome installations allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted Flash content that overrides a valueOf function, as exploited in the wild in July 2015.

CVSS Scores

version 3.1