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Information Exposure Affecting firefox-esr package, versions <78.8.0esr-1

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High

    Threat Intelligence

    EPSS 0.88% (83rd percentile)
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NVD
6.5 medium
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SUSE
6.5 medium
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Red Hat
6.5 medium

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  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOXESR-1078692
  • published 24 Feb 2021
  • disclosed 26 Feb 2021
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Introduced: 24 Feb 2021

CVE-2021-23973 Open this link in a new tab
CWE-209 Open this link in a new tab

How to fix?

Upgrade Debian:unstable firefox-esr to version 78.8.0esr-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:unstable relevant fixed versions and status.

When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.