CVE-2021-30527: Use after free in WebUI
Use after free in WebUI in Google Chrome prior to 91.0.4472.77 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 91.0.4472.77 - Upgrade
Upgrade
alpine/chromiumto a version that resolves this vulnerability.Fixed in 91.0.4472.77-r0 - Upgrade
Upgrade
Google Chrometo a version that resolves this vulnerability.Fixed in 91.0.4472.77
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2021-30521
- CVE-2021-30522
- CVE-2021-30523
- CVE-2021-30524
- CVE-2021-30525
- CVE-2021-30526
- CVE-2021-30528
- CVE-2021-4322
- CVE-2021-30529
- CVE-2021-30530
- CVE-2021-30531
- CVE-2021-30532
- CVE-2021-30533
- CVE-2021-30534
- CVE-2021-30535
- CVE-2021-30542
- CVE-2021-30543
- CVE-2021-30558
- CVE-2021-30536
- CVE-2021-30537
- CVE-2021-30538
- CVE-2021-30539
- CVE-2021-30540
- CVE-2021-4321
Frequently Asked Questions
What is the severity of CVE-2021-30527?
CVE-2021-30527 has a high severity rating due to its potential for exploitation via malicious extensions.
How do I fix CVE-2021-30527?
To fix CVE-2021-30527, users should update Google Chrome to version 91.0.4472.77 or later.
Which versions of Google Chrome are affected by CVE-2021-30527?
CVE-2021-30527 affects Google Chrome versions prior to 91.0.4472.77.
Can CVE-2021-30527 be exploited without user interaction?
An attacker needs to convince the user to install a malicious extension for CVE-2021-30527 to be exploited.
What type of vulnerability is CVE-2021-30527?
CVE-2021-30527 is classified as a use-after-free vulnerability in the WebUI component of Google Chrome.