{"id":"USN-5521-1","summary":"containerd vulnerabilities","details":"It was discovered that containerd insufficiently restricted permissions on\ncontainer root and plugin directories. If a user or automated system were\ntricked into launching a specially crafted container image, a remote\nattacker could traverse directory contents and modify files and execute\nprograms on the host file system, possibly leading to privilege escalation.\n(CVE-2021-41103)\n\nIt was discovered that containerd incorrectly handled file permission\nchanges. If a user or automated system were tricked into launching a\nspecially crafted container image, a remote attacker could change\npermissions on files on the host file system and possibly escalate\nprivileges. (CVE-2021-32760)\n\nIt was discovered that containerd allows attackers to gain access to read-\nonly copies of arbitrary files and directories on the host via a specially-\ncrafted image configuration. An attacker could possibly use this issue to\nobtain sensitive information. (CVE-2022-23648)\n\nIt was discovered that containerd incorrectly handled certain memory\noperations. A remote attacker could use this to cause a denial of service.\n(CVE-2022-31030)\n","modified":"2026-05-20T16:05:55.530254887Z","published":"2022-07-15T13:48:23Z","related":["UBUNTU-CVE-2021-32760","UBUNTU-CVE-2021-41103","UBUNTU-CVE-2022-23648","UBUNTU-CVE-2022-31030"],"upstream":["CVE-2021-32760","CVE-2021-41103","CVE-2022-23648","CVE-2022-31030","UBUNTU-CVE-2021-32760","UBUNTU-CVE-2021-41103","UBUNTU-CVE-2022-23648","UBUNTU-CVE-2022-31030"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5521-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-32760"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-41103"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-23648"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-31030"}],"affected":[{"package":{"name":"containerd","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/containerd?arch=source&distro=esm-infra-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.6-0ubuntu1~16.04.6+esm2"}]}],"versions":["0.2.1-0ubuntu4~16.04","0.2.3-0ubuntu1~16.04","0.2.5-0ubuntu1~16.04.1","1.2.6-0ubuntu1~16.04.2","1.2.6-0ubuntu1~16.04.3","1.2.6-0ubuntu1~16.04.4","1.2.6-0ubuntu1~16.04.5","1.2.6-0ubuntu1~16.04.6","1.2.6-0ubuntu1~16.04.6+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.2.6-0ubuntu1~16.04.6+esm2","binary_name":"containerd"},{"binary_version":"1.2.6-0ubuntu1~16.04.6+esm2","binary_name":"golang-github-docker-containerd-dev"}],"availability":"Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5521-1.json","cves_map":{"cves":[],"ecosystem":"Ubuntu:Pro:16.04:LTS"}}}],"schema_version":"1.7.5"}