SB2023021044 - openEuler 22.03 LTS update for lxc
Published: February 10, 2023
Security Bulletin ID
SB2023021044
Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Exposure of Resource to Wrong Sphere (CVE-ID: CVE-2022-47952)
The vulnerability allows a local user to compromise the system.
The vulnerability exists due to exposure of resource to wrong sphere in lxc-user-nic. A local user can obtain file existence information.
2) Information disclosure (CVE-ID: CVE-2018-6556)
The vulnerability allows a local unauthenticated attacker to obtain potentially sensitive information on the target system.The weakness exists due to lxc-user-nic unconditionally opens a user provided path when asked to delete a network interface. A local attacker can check for the existence of a path which he wouldn't otherwise be able to reach and trigger side effects by causing a (read-only) open of special kernel files (ptmx, proc, sys).
Remediation
Install update from vendor's website.