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Origin Validation Error Affecting firefox package, versions <93.0-1

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Integrity High

    Threat Intelligence

    EPSS 0.1% (43rd percentile)
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NVD
6.5 medium
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SUSE
6.1 medium
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Red Hat
6.5 medium

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  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-1728403
  • published 6 Oct 2021
  • disclosed 3 Nov 2021
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Introduced: 6 Oct 2021

CVE-2021-38497 Open this link in a new tab
CWE-346 Open this link in a new tab

How to fix?

Upgrade Debian:unstable firefox to version 93.0-1 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.

Through use of reportValidity() and window.open(), a plain-text validation message could have been overlaid on another origin, leading to possible user confusion and spoofing attacks. This vulnerability affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2.