The CERT-FR (Governmental Center for Monitoring, Alert, and Response to Computer Attacks) has issued an advisory regarding multiple vulnerabilities in the Linux kernel of Ubuntu. These vulnerabilities, identified as CVE-2023-21400, CVE-2023-3090, CVE-2023-3567, CVE-2023-3609, CVE-2023-3776, CVE-2023-3777, CVE-2023-3995, CVE-2023-4004, CVE-2023-40283, and CVE-2023-4128, pose risks such as arbitrary code execution, data confidentiality breaches, and denial of service.
Risk Summary:
- Unauthorized access to confidential data.
- Denial of service.
- Arbitrary code execution.
- Privilege escalation.
Affected Systems:
- Ubuntu 14.04 ESM
- Ubuntu 16.04 ESM
- Ubuntu 18.04 ESM
- Ubuntu 20.04 LTS
- Ubuntu 22.04 LTS
Solution: Users are advised to promptly apply the patches provided by Ubuntu. Refer to the security bulletin from the vendor for detailed information.
Note: For more information on the vulnerabilities and patches, please consult the official security notice from Ubuntu dated October 10, 2023.