Access of Resource Using Incompatible Type ('Type Confusion') Affecting firefox package, versions <0:68.9.0-1.el8_2


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.31% (71st percentile)

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  • Snyk IDSNYK-RHEL8-FIREFOX-3761750
  • published26 Jul 2021
  • disclosed2 Jun 2020

Introduced: 2 Jun 2020

CVE-2020-12406  (opens in a new tab)
CWE-843  (opens in a new tab)

How to fix?

Upgrade RHEL:8 firefox to version 0:68.9.0-1.el8_2 or higher.
This issue was patched in RHSA-2020:2379.

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.

Mozilla Developer Iain Ireland discovered a missing type check during unboxed objects removal, resulting in a crash. We presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.

CVSS Scores

version 3.1