Use After Free Affecting firefox package, versions <0:68.6.0-1.el8_1


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.54% (78th percentile)

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  • Snyk IDSNYK-RHEL8-FIREFOX-3667041
  • published26 Jul 2021
  • disclosed10 Mar 2020

Introduced: 10 Mar 2020

CVE-2020-6807  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:8 firefox to version 0:68.6.0-1.el8_1 or higher.
This issue was patched in RHSA-2020:0820.

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:8 relevant fixed versions and status.

When a device was changed while a stream was about to be destroyed, the <code>stream-reinit</code> task may have been executed after the stream was destroyed, causing a use-after-free and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.

CVSS Scores

version 3.1