Google Chromium Blink Use-After-Free Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2021-11-03

[ Description ]Official description

Use after free in Blink in Google Chrome prior to 89.0.4389.90 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

CISA: Google Chromium Blink 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

• chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.htmlRelease Notes
• crbug.com/1186287Permissions Required
• lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/messag…Release Notes
• security.gentoo.org/glsa/202104-08Third Party Advisory
• www.debian.org/security/2021/dsa-4886Mailing ListThird Party Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource