CVE-2023-4582
Due to large allocation checks in Angle for glsl shaders being too lenient a buffer overflow could have occurred when allocating too much private shader memory on mac OS. *This bug only affects Firefox on macOS.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.89%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Due to large allocation checks in Angle for glsl shaders being too lenient a buffer overflow could have occurred when allocating too much private shader memory on mac OS. *This bug only affects Firefox on macOS. Other operating systems are unaffected.* This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
- 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
- 0.89% probability · 57th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- mozilla/firefox · mozilla/firefox esr · mozilla/thunderbird
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1773874Issue Tracking, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2023-34/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-36/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-38/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1773874Issue Tracking, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2023-34/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-36/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-38/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.