CVE-2023-6208

high

Description

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.

References

https://www.mozilla.org/security/advisories/mfsa2023-52/

https://www.mozilla.org/security/advisories/mfsa2023-50/

https://www.mozilla.org/security/advisories/mfsa2023-49/

https://www.debian.org/security/2023/dsa-5561

https://lists.debian.org/debian-lts-announce/2023/11/msg00030.html

https://lists.debian.org/debian-lts-announce/2023/11/msg00017.html

https://bugzilla.mozilla.org/show_bug.cgi?id=1855345

Details

Source: Mitre, NVD

Published: 2023-11-21

Updated: 2023-11-30

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High