CVE-2021-21206: Google Chromium Use-After-Free Vulnerability
First published: Wed Apr 07 2021(Updated: )
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.
Credit: Anonymous chrome-cve-admin@google.com chrome-cve-admin@google.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Google Chrome | <89.0.4389.128 | |
| Fedoraproject Fedora | =32 | |
| Fedoraproject Fedora | =33 | |
| Fedoraproject Fedora | =34 | |
| Google Chrome | <89.0.4389.128 | 89.0.4389.128 |
| <89.0.4389.128 | ||
| =32 | ||
| =33 | ||
| =34 | ||
| Google Chromium Blink |
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Reference Links
- https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html (Advisory)
- https://crbug.com/1196781
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/
- https://security.gentoo.org/glsa/202104-08
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/
- https://nvd.nist.gov/vuln/detail/CVE-2021-21206
Frequently Asked Questions
What is CVE-2021-21206?
CVE-2021-21206 is a use-after-free vulnerability in Google Chromium Blink that can lead to heap corruption.
How can a remote attacker exploit CVE-2021-21206?
A remote attacker can potentially exploit CVE-2021-21206 by using a crafted HTML page.
Which web browsers are affected by CVE-2021-21206?
Web browsers that utilize Chromium, including Google Chrome and Microsoft Edge, are affected by CVE-2021-21206.
What is the severity of CVE-2021-21206?
CVE-2021-21206 has a severity rating of 8.8 (high).
How can I fix CVE-2021-21206?
To fix CVE-2021-21206, users should update to the latest version of Chromium or the affected web browser.
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