Description: 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.
CVE-2021-21779
Published Date: 2021-07-08T12:15Z
Last Modified: 2023-11-07T03:30Z
CVSS Score: 8.8 (HIGH)
EPSS Score: 0.34%
Risk Score: 6.16 (HIGH)
Risk Score based on CVSS score and EPSS. This score is for reference purposes and is not internationally recognized.
CVSS:
8.8 |
EPSS:
0.34%
Mitre ATT&CK Technical v15.1
T1053.002 – At
Technical Analysis & Mitigation Measures
Reference Links
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1238
http://www.openwall.com/lists/oss-security/2021/07/23/1
https://www.debian.org/security/2021/dsa-4945
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V4QORERLPDN3UNNJFJSOMHZZCU2G75Q6/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KYMMBQN4PRVDLMIJT2LY2BWHLYBD57P3/
Vendor - Produce - Version
webkitgtk - webkitgtk, fedora - fedoraproject, fedora - fedoraproject, debian_linux - debian
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