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Improper Restriction of Rendered UI Layers or Frames Affecting firefox-esr package, versions <91.4.0esr-1

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required

    Threat Intelligence

    EPSS 0.12% (45th percentile)
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NVD
4.3 medium
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SUSE
5.4 medium
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Red Hat
5.4 medium

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  • Snyk ID SNYK-DEBIAN10-FIREFOXESR-2312019
  • published 8 Dec 2021
  • disclosed 8 Dec 2021
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Introduced: 8 Dec 2021

CVE-2021-43546 Open this link in a new tab
CWE-1021 Open this link in a new tab

How to fix?

Upgrade Debian:10 firefox-esr to version 91.4.0esr-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:10 relevant fixed versions and status.

It was possible to recreate previous cursor spoofing attacks against users with a zoomed native cursor. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.