SB20230411109 - openEuler 22.03 LTS SP1 update for runc
Published: April 11, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Improper Preservation of Permissions (CVE-ID: CVE-2023-25809)
CWE-ID: CWE-281 - Improper preservation of permissions
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to compromise the target system.
The vulnerability exists due to the rootless "/sys/fs/cgroup" is writable when cgroupns is not unshared. A local administrator can gain the write access to user-owned cgroup hierarchy "/sys/fs/cgroup/user.slice/..." on the host.
2) Improper Preservation of Permissions (CVE-ID: CVE-2023-28642)
CWE-ID: CWE-281 - Improper preservation of permissions
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to improper preservation of permissions in the AppArmor and SELinux when /proc inside the container is symlinked with a specific mount configuration. A remote attacker can gain access to the target application.
Remediation
Install update from vendor's website.