Information Exposure Affecting firefox package, versions <86.0-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.94% (84th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FIREFOX-1078681
  • published24 Feb 2021
  • disclosed26 Feb 2021

Introduced: 24 Feb 2021

CVE-2021-23968  (opens in a new tab)
CWE-209  (opens 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.

CVSS Scores

version 3.1