{"vulnerability": "CVE-2023-0240", "sightings": [{"uuid": "f3855d01-c795-4a4f-afb2-8887864a4034", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2023-0240", "type": "seen", "source": "https://t.me/cibsecurity/57159", "content": "\u203c CVE-2023-0240 \u203c\n\nThere is a logic error in io_uring's implementation which can be used to trigger a use-after-free vulnerability leading to privilege escalation. In the io_prep_async_work function the assumption that the last io_grab_identity call cannot return false is not true, and in this case the function will use the init_cred or the previous linked requests identity to do operations instead of using the current identity. This can lead to reference counting issues causing use-after-free. We recommend upgrading past version 5.10.161.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2023-01-30T16:37:12.000000Z"}]}