CVE-2021-30555: Use after free in Sharing
First published: Tue Jun 01 2021(Updated: )
Use after free in Sharing in Google Chrome prior to 91.0.4472.114 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page and user gesture.
Credit: chrome-cve-admin@google.com David Erceg
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Google Chrome (Trace Event) | <91.0.4472.114 | 91.0.4472.114 |
| Google Chrome | <91.0.4472.114 | |
| Red Hat Fedora | =33 | |
| Red Hat Fedora | =34 |
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Reference Links
- https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop_17.html (Advisory)
- https://crbug.com/1215029
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/
- https://security.gentoo.org/glsa/202107-06
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the severity of CVE-2021-30555?
CVE-2021-30555 is rated as high severity due to the potential for exploitation leading to heap corruption.
How do I fix CVE-2021-30555?
To fix CVE-2021-30555, update Google Chrome to version 91.0.4472.114 or later.
What happens if I don't patch CVE-2021-30555?
If not patched, CVE-2021-30555 could allow attackers to exploit users through malicious extensions leading to possible data corruption.
What products are affected by CVE-2021-30555?
CVE-2021-30555 affects all versions of Google Chrome prior to version 91.0.4472.114.
Is my operating system affected by CVE-2021-30555?
CVE-2021-30555 primarily affects Google Chrome and does not directly impact operating systems like Fedora.
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- version/red hat fedora/34