CRITICAL
CVE-2021-37973
CVSS
9.6
KEV
Description
Use after free in Portals in Google Chrome prior to 94.0.4606.61 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.
Summary dbcve.org
A use-after-free vulnerability in Google Chrome's Portals feature allows a remote attacker who has already compromised the renderer process to potentially escape the sandbox by tricking the user into visiting a crafted HTML page. The flaw exists in versions prior to 94.0.4606.61.
Mitigation
Update Google Chrome to version 94.0.4606.61 or later. For enterprise environments, deploy the update organization-wide through existing patch management systems and verify completion across all endpoints.
Weakness (CWE)
CWE-416
Use After Free
EPSS Score
11.74%
Probability of exploitation in next 30 days
95.9th percentile
References
https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_24.html
Release Notes
https://crbug.com/1251727
Issue Tracking, Patch, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/
Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/
Release Notes
https://www.debian.org/security/2022/dsa-5046
Mailing List, Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-37973
US Government Resource
Base CVE data derived from NVD (public domain). Enrichment by
dbcve.org
(CC-BY-4.0). Fetched via API.