========================================================================= Ubuntu Security Notice USN-5311-1 March 03, 2022 containerd vulnerability ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 21.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: containerd would allow unintended access to files over the network. Software Description: - containerd: daemon to control runC Details: It was discovered that containerd allows attackers to gain access to read- only copies of arbitrary files and directories on the host via a specially- crafted image configuration. An attacker could possibly use this issue to obtain sensitive information. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 21.10: containerd 1.5.5-0ubuntu3.1 Ubuntu 20.04 LTS: containerd 1.5.5-0ubuntu3~20.04.2 Ubuntu 18.04 LTS: containerd 1.5.5-0ubuntu3~18.04.2 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-5311-1 CVE-2022-23648 Package Information: https://launchpad.net/ubuntu/+source/containerd/1.5.5-0ubuntu3.1 https://launchpad.net/ubuntu/+source/containerd/1.5.5-0ubuntu3~20.04.2 https://launchpad.net/ubuntu/+source/containerd/1.5.5-0ubuntu3~18.04.2