high8.8
CVE-2021-21779
A use-after-free vulnerability exists in the way Webkit’s GraphicsContext handles certain events in WebKitGTK 2.30.4.
Impact
A use-after-free vulnerability exists in the way Webkit’s GraphicsContext handles certain events in WebKitGTK 2.30.4. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Webkitgtk | Webkitgtk | Version 2.30.4 |
| Fedoraproject | Fedora | Versions 33, 34 |
| Debian | Debian Linux | Version 10.0 |
Weakness classification
References
- NVD record
- CVE.org record
- http://www.openwall.com/lists/oss-security/2021/07/23/1
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KYMMBQN4PRVDLMIJT2LY2BWHLYBD57P3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V4QORERLPDN3UNNJFJSOMHZZCU2G75Q6/
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1238
- https://www.debian.org/security/2021/dsa-4945
- http://www.openwall.com/lists/oss-security/2021/07/23/1
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KYMMBQN4PRVDLMIJT2LY2BWHLYBD57P3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V4QORERLPDN3UNNJFJSOMHZZCU2G75Q6/
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1238
- https://www.debian.org/security/2021/dsa-4945