Use After Free in Webkit
CVE-2023-39928
A use-after-free vulnerability exists in the MediaRecorder API of Webkit WebKitGTK 2.40.5. A specially crafted web page can abuse this vulnerability to cause memory corruption and potentially arbitrary code execution. A user would need to to visit a malicious webpage to trigger this vulnerability.
Vulnerability class: Use-After-Free
EPSS: 0.014 (69.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Webkit — versions WebKitGTK 2.40.5
- Webkitgtk — versions 2.40.5
- Debian Debian_linux — versions 11.0, 12.0
- Fedoraproject Fedora — versions 37
Weakness classification (CWE)
References
- talos-cna@cisco.com (Third Party Advisory)
- talos-cna@cisco.com (Vendor Advisory)
- talos-cna@cisco.com (Third Party Advisory)
- talos-cna@cisco.com (Mailing List, Third Party Advisory)
- talos-cna@cisco.com
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-39928?
- CVE-2023-39928 is a high-severity vulnerability in Webkit, classified under Use After Free. CVSS score: 8.8/10. Published 2023-10-06.
- How severe is CVE-2023-39928?
- High severity. CVSS v3 base score is 8.8 out of 10.