cloud-init as managed by snapd on Ubuntu Core 16 and Ubuntu Core 18 devices was run without restrictions on every boot, which a physical attacker could exploit by crafting cloud-init user-data/meta-data via external media to perform arbitrary changes on the device to bypass intended security mechanisms such as full disk encryption. This issue did not affect traditional Ubuntu systems. Fixed in snapd version 2.45.2, revision 8539 and core version 2.45.2, revision 9659.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: canonical

Published: 2020-07-29T16:25:25.690070Z

Updated: 2024-09-17T00:40:28.129Z

Reserved: 2020-04-20T00:00:00

Link: CVE-2020-11933

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2020-07-29T17:15:12.857

Modified: 2021-11-04T17:45:25.967

Link: CVE-2020-11933

cve-icon Redhat

No data.