CVE-2021-21779
WebKitGTK Use-After-Free Information Leak and Memory Corruption Vulnerability
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.
INFO
Published Date :
July 8, 2021, 12:15 p.m.
Last Modified :
Nov. 7, 2023, 3:30 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2021-21779
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-21779.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-21779 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-21779 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference Talos https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V4QORERLPDN3UNNJFJSOMHZZCU2G75Q6/ [No types assigned] Added Reference Talos https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KYMMBQN4PRVDLMIJT2LY2BWHLYBD57P3/ [No types assigned] Removed Reference Talos https://lists.fedoraproject.org/archives/list/[email protected]/message/V4QORERLPDN3UNNJFJSOMHZZCU2G75Q6/ Removed Reference Talos https://lists.fedoraproject.org/archives/list/[email protected]/message/KYMMBQN4PRVDLMIJT2LY2BWHLYBD57P3/ -
Modified Analysis by [email protected]
Jul. 21, 2022
Action Type Old Value New Value -
CVE Modified by [email protected]
Apr. 28, 2022
Action Type Old Value New Value Added CWE Talos CWE-416 -
CVE Modified by [email protected]
Apr. 19, 2022
Action Type Old Value New Value Added CVSS V3 Talos AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L -
Modified Analysis by [email protected]
Sep. 20, 2021
Action Type Old Value New Value Changed Reference Type http://www.openwall.com/lists/oss-security/2021/07/23/1 No Types Assigned http://www.openwall.com/lists/oss-security/2021/07/23/1 Mailing List Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/KYMMBQN4PRVDLMIJT2LY2BWHLYBD57P3/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/KYMMBQN4PRVDLMIJT2LY2BWHLYBD57P3/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/V4QORERLPDN3UNNJFJSOMHZZCU2G75Q6/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/V4QORERLPDN3UNNJFJSOMHZZCU2G75Q6/ Mailing List, Third Party Advisory Changed Reference Type https://www.debian.org/security/2021/dsa-4945 No Types Assigned https://www.debian.org/security/2021/dsa-4945 Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Aug. 08, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/KYMMBQN4PRVDLMIJT2LY2BWHLYBD57P3/ [No Types Assigned] -
CVE Modified by [email protected]
Jul. 30, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/V4QORERLPDN3UNNJFJSOMHZZCU2G75Q6/ [No Types Assigned] Added Reference https://www.debian.org/security/2021/dsa-4945 [No Types Assigned] -
CVE Modified by [email protected]
Jul. 23, 2021
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2021/07/23/1 [No Types Assigned] -
Initial Analysis by [email protected]
Jul. 12, 2021
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Changed Reference Type https://talosintelligence.com/vulnerability_reports/TALOS-2021-1238 No Types Assigned https://talosintelligence.com/vulnerability_reports/TALOS-2021-1238 Exploit, Third Party Advisory Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:a:webkitgtk:webkitgtk:2.30.4:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-21779 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-21779
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.34 }} 0.03%
score
0.70755
percentile