CVE-2021-21206
Google Chromium Use-After-Free Vulnerability - [Actively Exploited]
Description
Use after free in Blink in Google Chrome prior to 89.0.4389.128 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
INFO
Published Date :
April 26, 2021, 5:15 p.m.
Last Modified :
July 25, 2024, 5:31 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.8
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
Google Chromium Blink contains a use-after-free vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
Apply updates per vendor instructions.
Public PoC/Exploit Available at Github
CVE-2021-21206 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2021-21206.
| URL | Resource |
|---|---|
| https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html | Release Notes |
| https://crbug.com/1196781 | Permissions Required Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/ | Release Notes |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/ | Release Notes |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/ | Release Notes |
| https://security.gentoo.org/glsa/202104-08 | Third Party Advisory |
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).
Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
cisa-kev vulnerability 0day cisa exploits
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-21206 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-21206 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.
-
Modified Analysis by [email protected]
Jul. 25, 2024
Action Type Old Value New Value Changed Reference Type https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html Release Notes, Third Party Advisory https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html Release Notes Changed Reference Type https://crbug.com/1196781 Third Party Advisory https://crbug.com/1196781 Permissions Required, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/ Release Notes Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/ Release Notes Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/ Release Notes -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725
Feb. 15, 2024
Action Type Old Value New Value Changed Vulnerability Name Google Chromium Use-After-Free Vulnerability Google Chromium Blink Use-After-Free Vulnerability -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference Chrome https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/ [No types assigned] Added Reference Chrome https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/ [No types assigned] Added Reference Chrome https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/ [No types assigned] Removed Reference Chrome https://lists.fedoraproject.org/archives/list/[email protected]/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/ Removed Reference Chrome https://lists.fedoraproject.org/archives/list/[email protected]/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/ Removed Reference Chrome https://lists.fedoraproject.org/archives/list/[email protected]/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/ -
Modified Analysis by [email protected]
Jun. 03, 2021
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/ Mailing List, Third Party Advisory Changed Reference Type https://security.gentoo.org/glsa/202104-08 No Types Assigned https://security.gentoo.org/glsa/202104-08 Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* -
CVE Modified by [email protected]
May. 14, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/ [No Types Assigned] -
CVE Modified by [email protected]
May. 12, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/ [No Types Assigned] Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/ [No Types Assigned] -
CVE Modified by [email protected]
May. 01, 2021
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202104-08 [No Types Assigned] -
Initial Analysis by [email protected]
Apr. 28, 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://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html No Types Assigned https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html Release Notes, Third Party Advisory Changed Reference Type https://crbug.com/1196781 No Types Assigned https://crbug.com/1196781 Third Party Advisory Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* versions up to (excluding) 89.0.4389.128
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-21206 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-2021-21206
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
3.99 }} -0.56%
score
0.92242
percentile