CVE-2021-21779
High
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.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Webkitgtk
PublishedJul 8, 2021
First seenJul 8, 2021
Weakness typeCWE-416Use after free
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| webkitgtk webkitgtk | 2.30.4 | — |
| fedoraproject fedora | 33, 34 | — |
| debian debian_linux | 10.0 | — |
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