Use after free in permissions in Google Chrome prior to 90.0.4430.72 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-21201
• https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop_14.html
• https://crbug.com/1025683
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/
• https://security.gentoo.org/glsa/202104-08
• https://www.debian.org/security/2021/dsa-4906