VulnerabilityModified
CVE-2023-6208
Other systems are unaffected.* This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.
HIGH 8.8EPSS 0.77%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.77%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.77% probability · 54th percentile
- CISA KEV
- Not listed
- Affected
- mozilla/firefox · mozilla/firefox esr · mozilla/thunderbird · debian/debian linux
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1855345Issue Tracking, Permissions 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 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=1855345Issue Tracking, Permissions 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 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.