Ubuntu Security Notice USN-5012-1
https://packetstormsecurity.com/files/163563/USN-5012-1.txt
https://packetstormsecurity.com/files/163563/USN-5012-1.txthttps://packetstormsecurity.com/files/163563/Ubuntu-Security-Notice-USN-5012-1.htmlTue, 20 Jul 2021 14:39:42 GMTUbuntu Security Notice 5012-1 - It was discovered that containerd incorrectly handled file permission changes. If a user or automated system were tricked into launching a specially crafted container image, a remote attacker could change permissions on files on the host filesystem and possibly escalate privileges.