The French Computer Emergency Response Team (CERT-FR) issues a critical security advisory regarding multiple vulnerabilities discovered in the Ubuntu Linux kernel. These vulnerabilities pose significant risks, including remote code execution, remote denial of service, and compromise of data integrity and confidentiality.
Risk:
- Remote code execution
- Remote denial of service
- Compromise of data integrity
- Compromise of data confidentiality
Affected Systems:
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 23.10
- Ubuntu 18.04 ESM
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM
Summary: Multiple vulnerabilities have been identified in the Ubuntu Linux kernel, some of which allow attackers to execute arbitrary code remotely, initiate remote denial of service attacks, and compromise the integrity and confidentiality of data.
Solution: Refer to the vendor’s security bulletins for obtaining the necessary patches.
References:
- Ubuntu USN-6446-3 – October 26, 2023
- Ubuntu USN-6454-1 – October 26, 2023
- Ubuntu USN-6440-3 – October 25, 2023
- Ubuntu USN-6445-2 – October 24, 2023
- Ubuntu USN-6446-2 – October 24, 2023
- Ubuntu USN-6444-2 – October 24, 2023
- Ubuntu USN-6439-2 – October 23, 2023
- Ubuntu USN-6441-2 – October 23, 2023
- Ubuntu USN-6440-2 – October 20, 2023
Users are strongly advised to apply the recommended patches promptly to mitigate the identified risks. CERT-FR emphasizes the importance of staying informed and vigilant against potential cyber threats.