Is CVE-2021-21779 actively exploited?

CVE-2021-21779 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2021-21779?

CVE-2021-21779 has a CVSS score of 8.8 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

How do I patch CVE-2021-21779?

Patch guidance is available from webkitgtk security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-21779.

Fix CVE-2021-21779 - HIGH webkitgtk webkitgtk

Q: Which products are affected by CVE-2021-21779?

4 products: webkitgtk webkitgtk, fedoraproject fedora, fedoraproject fedora, debian debian linux.

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: required
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-416 · Use After Free CWE-416 · Use After Free

Metadata

Primary Vendor: WEBKITGTK
Published: 7/8/2021
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

webkitgtk : webkitgtkfedoraproject : fedorafedoraproject : fedoradebian : debian_linux

Remediation Guidance

Executive Summary

View on NIST NVD