CVE-2023-6204 — Out-of-bounds Read in Mozilla Firefox
Severity
6.5MEDIUMNVD
EPSS
0.3%
top 49.91%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedNov 21
Latest updateDec 4
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NExploitability: 2.8 | Impact: 3.6
Affected Packages7 packages
Also affects: Debian Linux 10.0, 11.0, 12.0
🔴Vulnerability Details
6CVEList▶
CVE-2023-6204: 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 cre↗2023-11-21
GHSA▶
GHSA-c9gw-j4mh-mj26: 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 cre↗2023-11-21
📋Vendor Advisories
7Debian▶
CVE-2023-6204: firefox - On some systems—depending on the graphics settings and drivers—it was possible t...↗2023