CVE-2023-6204
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-6204
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-6204.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-6204
- Downstream
- Related
- Published
- 2023-11-21T15:15:07Z
- Modified
- 2025-08-09T19:01:28Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
On some systems—depending on the graphics settings and drivers—it was possible to force an out-of-bounds read and leak memory data into the images created on the canvas element. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.
- References
-
- https://www.debian.org/security/2023/dsa-5561
- https://www.mozilla.org/security/advisories/mfsa2023-49/
- https://www.mozilla.org/security/advisories/mfsa2023-50/
- https://www.mozilla.org/security/advisories/mfsa2023-52/
- https://lists.debian.org/debian-lts-announce/2023/11/msg00017.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=1841050
- https://lists.debian.org/debian-lts-announce/2023/11/msg00030.html