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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.014 (72.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: +0.000
Affected products
- Webkit — versions WebKitGTK 2.40.5
- Webkitgtk — versions 2.40.5
- Debian Linux — versions 11.0, 12.0
- Fedoraproject Fedora — versions 37
Weakness classification (CWE)
References
- talosintelligence.com/vulnerability_reports/TALOS-2023-1831 (Third Party Advisory)
- webkitgtk.org/security/WSA-2023-0009.html (Vendor Advisory)
- www.debian.org/security/2023/dsa-5527 (Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202401-33
- 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.