Chrome’s eleventh zero-day vulnerability for the year 2021 has been patched

Threat Advisories

Chrome’s eleventh zero-day vulnerability for the year 2021 has been patched

THREAT LEVEL: Amber.

For a detailed advisory, download the pdf file here.

A vulnerability in Chrome and Microsoft edge(Chromium based) exists as a result of a use-after-free issue when processing HTML data in Google Chrome’s Portals component. A remote attacker can create a specially designed site, fool the victim into visiting it, trigger a use-after-free error, and execute arbitrary code on the machine. This vulnerability has also been exploited in the wild. Google has issued an emergency update (94.0.4606.61) addressing the problem.

Vulnerability Details

 

CVE ID Affected Products Affected CPE Vulnerability Name CWE ID
CVE-2021-37973 Google Chrome up to 93.0.4577.82, Microsoft Edge (Chromium-based) up to 93.0.961.52 cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*,
cpe:2.3:a:microsoft:microsoft_edge_\(chromium-based\):*:*:*:*:*::*:*
Use after free in Portals. CWE-416

Patch Link

https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_24.html

References

https://www.bleepingcomputer.com/news/security/emergency-google-chrome-update-fixes-zero-day-exploited-in-the-wild/

https://www.cybersecurity-help.cz/vdb/SB2021092428