CVEvulnerability
CVE-2023-6208
8.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2023-11-21
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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.
Affected configurations
• mozilla firefox (< 120.0)
• mozilla firefox esr (< 115.5.0)
• mozilla thunderbird (< 115.5)
• debian debian linux 10.0
• debian debian linux 11.0
• debian debian linux 12.0
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1855345 Issue Tracking, Permissions Required
- https://lists.debian.org/debian-lts-announce/2023/11/msg00017.html Mailing List
- https://lists.debian.org/debian-lts-announce/2023/11/msg00030.html lists.debian.org
- https://www.debian.org/security/2023/dsa-5561 Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-49/ Release Notes, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-50/ Release Notes, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-52/ Release Notes, Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1855345 Issue Tracking, Permissions Required
- https://lists.debian.org/debian-lts-announce/2023/11/msg00017.html Mailing List
- https://lists.debian.org/debian-lts-announce/2023/11/msg00030.html lists.debian.org
- https://www.debian.org/security/2023/dsa-5561 Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-49/ Release Notes, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-50/ Release Notes, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-52/ Release Notes, Vendor Advisory