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CVE-2021-29974 Affecting firefox package, versions <90.0-1

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required

    Threat Intelligence

    EPSS 0.1% (40th percentile)
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NVD
4.3 medium

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  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-1317003
  • published 14 Jul 2021
  • disclosed 5 Aug 2021
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Introduced: 14 Jul 2021

CVE-2021-29974 Open this link in a new tab

How to fix?

Upgrade Debian:unstable firefox to version 90.0-1 or higher.

NVD Description

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

When network partitioning was enabled, e.g. as a result of Enhanced Tracking Protection settings, a TLS error page would allow the user to override an error on a domain which had specified HTTP Strict Transport Security (which implies that the error should not be override-able.) This issue did not affect the network connections, and they were correctly upgraded to HTTPS automatically. This vulnerability affects Firefox < 90.