SB2023120545 - Improper access control in lxd

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Main Vulnerability Database SB2023120545

SB2023120545 - Improper access control in lxd

Published: December 5, 2023 Updated: April 9, 2026

Security Bulletin ID SB2023120545
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper access control (CVE-ID: N/A)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to escalate privileges.

The vulnerability exists due to improper access control in disk device configuration validation when creating a disk device with shift=true in a restricted project without restricted.devices.disk.paths set. A remote user can create a disk device with shift=true and a setuid root executable to escalate privileges.

The issue occurs in projects configured with restricted=true and restricted.devices.disk=allow.


Remediation

Install update from vendor's website.

References