CVE-2021-30633: Google Chromium Indexed DB API Use-After-Free Vulnerability
First published: Wed Sep 08 2021(Updated: )
Google Chromium Indexed DB API 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 could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
Credit: chrome-cve-admin@google.com chrome-cve-admin@google.com Anonymous chrome-cve-admin@google.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Google Chrome | <93.0.4577.82 | |
| Fedoraproject Fedora | =33 | |
| Fedoraproject Fedora | =35 | |
| Google Chrome | <93.0.4577.82 | 93.0.4577.82 |
| Google Chromium Indexed DB API | ||
| <93.0.4577.82 | ||
| =33 | ||
| =35 |
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Reference Links
- https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html (Advisory)
- https://crbug.com/1247766
- 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://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-2021-30633
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is CVE-2021-30633?
CVE-2021-30633 is a use-after-free vulnerability in the Google Chromium Indexed DB API that allows a remote attacker to potentially perform a sandbox escape.
Which software is affected by CVE-2021-30633?
Web browsers that utilize Chromium, including Google Chrome and Fedora versions 33 and 35, are affected by CVE-2021-30633.
How severe is CVE-2021-30633?
CVE-2021-30633 has a severity value of 9.6, which is considered critical.
How can a remote attacker exploit CVE-2021-30633?
A remote attacker who has compromised the renderer process can potentially perform a sandbox escape by using a crafted HTML page.
Are there any references related to CVE-2021-30633?
Yes, you can find more information about CVE-2021-30633 in the following references: [Google Chrome Releases](https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html), [Chromium Bug Tracker](https://crbug.com/1247766), [Fedora Project](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/).
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