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CVE-2023-6204

CVE-2023-6204

EPSS 0.8%
Vexday Risk Score
3Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS —EPSS 0.8%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
21 Nov 2023Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
Affected products
Mozilla · FirefoxMozilla · Firefox ESRMozilla · Thunderbird

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References
https://bugzilla.mozilla.org/show_bug.cgi?id=1841050https://lists.debian.org/debian-lts-announce/2023/11/msg00017.htmlhttps://lists.debian.org/debian-lts-announce/2023/11/msg00030.htmlhttps://www.debian.org/security/2023/dsa-5561https://www.mozilla.org/security/advisories/mfsa2023-49/https://www.mozilla.org/security/advisories/mfsa2023-50/https://www.mozilla.org/security/advisories/mfsa2023-52/