Ubuntu Security Notice USN-5128-1

Ubuntu Security Notice 5128-1 - Goutham Pacha Ravi, Jahson Babel, and John Garbutt discovered that user credentials in Ceph could be manipulated in certain environments. An attacker could use this to gain unintended access to resources. This issue only affected Ubuntu 18.04 LTS. It was discovered that Ceph contained an authentication flaw, leading to key reuse. An attacker could use this to cause a denial of service or possibly impersonate another user. This issue only affected Ubuntu 21.04. Various other issues were also addressed.