Integer Overflow or Wraparound Affecting firefox package, versions <0:45.4.0-1.el7_2


Severity

Recommended
critical

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.43% (87th percentile)

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  • Snyk IDSNYK-RHEL7-FIREFOX-5125070
  • published26 Jul 2021
  • disclosed20 Sept 2016

Introduced: 20 Sep 2016

CVE-2016-5261  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade RHEL:7 firefox to version 0:45.4.0-1.el7_2 or higher.
This issue was patched in RHSA-2016:1912.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

Integer overflow in the WebSocketChannel class in the WebSockets subsystem in Mozilla Firefox before 48.0 and Firefox ESR < 45.4 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted packets that trigger incorrect buffer-resize operations during buffering.