Home/CVE/When using X11, text selected by the page using the Selection API was erroneously copied into the primary selection, a t
CVE

CVE-2023-6208

When using X11, text selected by the page using the Selection API was erroneously copied into the primary selection, a t

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.

HIGH · CVSS 8.8 EPSS 0.00374
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
▤

Affected Products & Versions

4
mozilla firefox< 120.0
mozilla firefox esr< 115.5.0
mozilla thunderbird< 115.5
debian linuxall versions
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSQLite Firefox Profile Data DB Access
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · security@mozilla.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD21 Nov 2023 · 03:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

30
suse-csafopenSUSE-SU-2024:14572-1
suse-csafopenSUSE-SU-2024:13459-1
suse-csafopenSUSE-SU-2024:13468-1
suse-csafSUSE-SU-2023:4928-1
suse-csafSUSE-SU-2023:4929-1
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.mozilla.org/show_bug.cgi?id=1855345Issue TrackingPermissions Required
https://lists.debian.org/debian-lts-announce/2023/11/msg00017.htmlMailing List
https://lists.debian.org/debian-lts-announce/2023/11/msg00030.html
https://www.debian.org/security/2023/dsa-5561Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2023-49/Release NotesVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-50/Release NotesVendor Advisory
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