https://ubuntu.com/security/CVE-2021-3156 #### Ubuntu [[Ubuntu 20.04 LTS(Focal Fossa)]]なので`1.8.31-1ubuntu1.2`にバージョンアップすればOK。 ```shell $ sudo apt update $ sudo apt --only-upgrade install sudo $ sudo apt list sudo Listing... Done sudo/focal-updates,focal-security,now 1.8.31-1ubuntu1.2 amd64 [installed,automatic] ```