Arch Linux Security Advisory ASA-202107-4 ========================================= Severity: High Date : 2021-07-01 CVE-ID : CVE-2021-30554 CVE-2021-30555 CVE-2021-30556 CVE-2021-30557 Package : opera Type : arbitrary code execution Remote : Yes Link : https://security.archlinux.org/AVG-2083 Summary ======= The package opera before version 77.0.4054.146-1 is vulnerable to arbitrary code execution. Resolution ========== Upgrade to 77.0.4054.146-1. # pacman -Syu "opera>=77.0.4054.146-1" The problems have been fixed upstream in version 77.0.4054.146. Workaround ========== None. Description =========== - CVE-2021-30554 (arbitrary code execution) A use after free security issue has been found in the WebGL component of the Chromium browser engine before version 91.0.4472.114. Google is aware that an exploit for CVE-2021-30554 exists in the wild. - CVE-2021-30555 (arbitrary code execution) A use after free security issue has been found in the Sharing component of the Chromium browser engine before version 91.0.4472.114. - CVE-2021-30556 (arbitrary code execution) A use after free security issue has been found in the WebAudio component of the Chromium browser engine before version 91.0.4472.114. - CVE-2021-30557 (arbitrary code execution) A use after free security issue has been found in the TabGroups component of the Chromium browser engine before version 91.0.4472.114. Impact ====== A remote attacker could execute arbitrary code through a crafted web page. Google is aware that an exploit for one of the security issues exists in the wild. References ========== https://blogs.opera.com/desktop/changelog-for-77/ https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desk... https://crbug.com/1219857 https://crbug.com/1215029 https://crbug.com/1212599 https://crbug.com/1202102 https://security.archlinux.org/CVE-2021-30554 https://security.archlinux.org/CVE-2021-30555 https://security.archlinux.org/CVE-2021-30556 https://security.archlinux.org/CVE-2021-30557