CVE-2023-6208 Affecting firefox package, versions <120.0+build2-0ubuntu0.20.04.1


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.17% (55th percentile)

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  • Snyk IDSNYK-UBUNTU2004-FIREFOX-6075353
  • published23 Nov 2023
  • disclosed21 Nov 2023

Introduced: 21 Nov 2023

CVE-2023-6208  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 firefox to version 120.0+build2-0ubuntu0.20.04.1 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 Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

When using X11, text selected by the page using the Selection API was erroneously copied into the primary selection, a temporary storage not unlike the clipboard. This bug only affects Firefox on X11. Other systems are unaffected. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

CVSS Scores

version 3.1