CVE-2021-37973: Google Chromium Use-After-Free Vulnerability
First published: Tue Sep 21 2021(Updated: )
Google Chromium Portals contains a use-after-free vulnerability that allows a remote attacker, who has compromised the renderer process, to potentially perform a sandbox escape via a crafted HTML page. This vulnerability affects web browsers that utilize Chromium, including Google Chrome and Microsoft Edge.
Credit: chrome-cve-admin@google.com Clément Lecigne Google TAGwith technical assistance Sergei GlazunovMark Brand Google Project Zero chrome-cve-admin@google.com chrome-cve-admin@google.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/chromium | <=90.0.4430.212-1~deb10u1 | 116.0.5845.180-1~deb11u1 118.0.5993.70-1~deb11u1 116.0.5845.180-1~deb12u1 118.0.5993.70-1~deb12u1 118.0.5993.70-1 |
| Google Chrome | <94.0.4606.61 | |
| Fedoraproject Fedora | =33 | |
| Fedoraproject Fedora | =35 | |
| Debian Debian Linux | =10.0 | |
| Debian Debian Linux | =11.0 | |
| Google Chromium Portals | ||
| Google Chrome | <94.0.4606.61 | 94.0.4606.61 |
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Reference Links
- https://security-tracker.debian.org/tracker/CVE-2021-37973
- https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_24.html (Advisory)
- https://crbug.com/1251727
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/
- https://www.debian.org/security/2022/dsa-5046
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/
- https://nvd.nist.gov/vuln/detail/CVE-2021-37973
Frequently Asked Questions
What is CVE-2021-37973?
CVE-2021-37973 is a use-after-free vulnerability in Google Chromium Portals.
How does CVE-2021-37973 impact web browsers?
CVE-2021-37973 can potentially allow a remote attacker to perform a sandbox escape via a crafted HTML page on web browsers that utilize Chromium, including Google Chrome and Microsoft Edge.
Which software versions are affected by CVE-2021-37973?
CVE-2021-37973 affects Google Chromium versions up to and including 94.0.4606.61, Google Chrome versions up to and including 94.0.4606.61, and Debian Chromium versions up to and including 90.0.4430.212-1~deb10u1.
What is the severity of CVE-2021-37973?
CVE-2021-37973 has a severity rating of 9.6 (Critical).
How can I mitigate CVE-2021-37973?
To mitigate CVE-2021-37973, users should update their Chromium-based web browsers to the latest available versions provided by the respective vendors.
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