CVE-2021-30549: Use after free in Spell check
Use after free in Spell check in Google Chrome prior to 91.0.4472.101 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.
Credit
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Google Chrome (Trace Event)to a version that resolves this vulnerability.Fixed in 91.0.4472.101 - Upgrade
Upgrade
alpine/chromiumto a version that resolves this vulnerability.Fixed in 91.0.4472.101-r0 - Upgrade
Upgrade
Google Chrometo a version that resolves this vulnerability.Fixed in 91.0.4472.101
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2021-30549?
CVE-2021-30549 has a high severity rating due to the potential for heap corruption and exploitation via malicious extensions.
How do I fix CVE-2021-30549?
To fix CVE-2021-30549, update Google Chrome to version 91.0.4472.101 or later.
Which versions of Google Chrome are affected by CVE-2021-30549?
Google Chrome versions prior to 91.0.4472.101 are affected by CVE-2021-30549.
Can CVE-2021-30549 be exploited through malicious extensions?
Yes, CVE-2021-30549 can be exploited if a user installs a malicious extension designed to trigger the vulnerability.
What operating systems are impacted by CVE-2021-30549?
CVE-2021-30549 impacts Google Chrome on various operating systems including Fedora 33 and 34.