[ CVE-2021-37975 · Published 8 Oct 2021 ]
Google Chromium V8 Use-After-Free Vulnerability
[ Why it matters ]Priority signals
- Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2021-11-03
- EPSS: 35% chance of exploitation in the next 30 days (higher than 98% of CVEs)
[ Description ]Official description
Use after free in V8 in Google Chrome prior to 94.0.4606.71 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CISA: Google Chromium V8 Engine contains a use-after-free 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
- packetstormsecurity.com/files/172847/Chrome-V8-Logic-Bug-Use-After-Free.htmlThird Party AdvisoryVDB Entry
- chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_30.htmlRelease Notes
- crbug.com/1252918Permissions Required
- 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
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/messag…Release Notes
- www.debian.org/security/2022/dsa-5046Mailing ListThird Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource