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Improper Restriction of Rendered UI Layers or Frames Affecting firefox-esr package, versions <91.3.0esr-1

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required

    Threat Intelligence

    EPSS 0.17% (53rd percentile)
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NVD
4.3 medium
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SUSE
6.1 medium
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Red Hat
6.1 medium

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  • Snyk ID SNYK-DEBIAN12-FIREFOXESR-1909746
  • published 3 Nov 2021
  • disclosed 8 Dec 2021
Report a new vulnerability Found a mistake?

Introduced: 3 Nov 2021

CVE-2021-38508 Open this link in a new tab
CWE-1021 Open this link in a new tab

How to fix?

Upgrade Debian:12 firefox-esr to version 91.3.0esr-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-esr package and not the firefox-esr package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

By displaying a form validity message in the correct location at the same time as a permission prompt (such as for geolocation), the validity message could have obscured the prompt, resulting in the user potentially being tricked into granting the permission. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.