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CVE-2020-11933

Description

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.

Risk Information

Base Score
6.8
MODERATE
Vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
Exploitation Probability
0.026

Associated Vulnerability

VulnerabilityOS Platform
Daemon and tooling that enable snap packages (USN-4424-1) snapd_2.45.1+18.04.2_i386.debLinux
Daemon and tooling that enable snap packages (USN-4424-1) snapd_2.45.1+18.04.2_amd64.debLinux
Daemon and tooling that enable snap packages (USN-4424-1) snapd_2.45.1+19.10.2_i386.debLinux
Daemon and tooling that enable snap packages (USN-4424-1) snapd_2.45.1+19.10.2_amd64.debLinux
Daemon and tooling that enable snap packages (USN-4424-1) snapd_2.45.1+20.04.2_amd64.debLinux
Daemon and tooling that enable snap packages (USN-4424-1) snapd_2.45.1ubuntu0.2_i386.debLinux
Daemon and tooling that enable snap packages (USN-4424-1) snapd_2.45.1ubuntu0.2_amd64.debLinux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234