CVE-2020-26976 Affecting firefox package, versions <0:78.7.0-2.0.1.el8_3


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.46% (76th percentile)

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  • Snyk IDSNYK-ORACLE8-FIREFOX-2580097
  • published10 Apr 2022
  • disclosed7 Jan 2021

Introduced: 7 Jan 2021

CVE-2020-26976  (opens in a new tab)

How to fix?

Upgrade Oracle:8 firefox to version 0:78.7.0-2.0.1.el8_3 or higher.
This issue was patched in ELSA-2021-0288.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

When a HTTPS pages was embedded in a HTTP page, and there was a service worker registered for the former, the service worker could have intercepted the request for the secure page despite the iframe not being a secure context due to the (insecure) framing. This vulnerability affects Firefox < 84.

CVSS Scores

version 3.1