[ CVE-2021-30551 · Published 15 Jun 2021 ]
Google Chromium V8 Type Confusion Vulnerability
[ Why it matters ]Priority signals
- Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2021-11-03
- EPSS: 65% chance of exploitation in the next 30 days (higher than 99% of CVEs)
[ Description ]Official description
Type confusion in V8 in Google Chrome prior to 91.0.4472.101 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CISA: Google Chromium V8 Engine contains a type confusion vulnerability that allows a remote attacker to potentially exploit heap corruption 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.
[ Fixes ]Fixes and patches
CISA required action (US federal deadline 17 Nov 2021): Apply updates per vendor instructions.
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ References ]References
- chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop.htmlRelease Notes
- crbug.com/1216437ExploitIssue TrackingThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/messag…Release Notes
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/messag…Release Notes
- security.gentoo.org/glsa/202107-06Third Party Advisory
- security.gentoo.org/glsa/202208-25Third Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource