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Information Exposure Affecting firefox package, versions <86.0-1

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required

    Threat Intelligence

    EPSS 0.76% (81st percentile)
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NVD
4.3 medium
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Red Hat
4.3 medium
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SUSE
4.3 medium

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  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-1078681
  • published 24 Feb 2021
  • disclosed 26 Feb 2021
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Introduced: 24 Feb 2021

CVE-2021-23968 Open this link in a new tab
CWE-209 Open this link in a new tab

How to fix?

Upgrade Debian:unstable firefox to version 86.0-1 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.

If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.