The French Governmental Computer Security Incident Response Team (CERT-FR) has issued an advisory regarding multiple vulnerabilities identified in the Ubuntu Linux kernel. These vulnerabilities could lead to significant security risks, including data integrity compromise, data confidentiality breach, remote denial of service, remote execution of arbitrary code, and privilege escalation.
The affected Ubuntu versions include:
- Ubuntu 18.04 ESM
- Ubuntu 20.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 23.04
The vulnerabilities present in the Ubuntu Linux kernel could allow attackers to exploit the system’s security, potentially compromising sensitive data, gaining unauthorized access, or executing malicious code remotely. These vulnerabilities encompass a range of security risks, making immediate remediation crucial.
Users are strongly advised to take prompt action by referring to the security bulletins issued by Ubuntu. These bulletins contain detailed information about the vulnerabilities and provide the necessary patches to address them.
For more information and to access the security bulletins, users can visit the following links:
- Ubuntu USN-6285-1 Security Bulletin dated August 11, 2023: Link
- Ubuntu USN-6284-1 Security Bulletin dated August 11, 2023: Link
- Ubuntu USN-6283-1 Security Bulletin dated August 11, 2023: Link
- Ubuntu USN-6301-1 Security Bulletin dated August 17, 2023: Link
- Ubuntu USN-6300-1 Security Bulletin dated August 17, 2023: Link
The CVE references for these vulnerabilities are listed as follows:
(A list of CVE references follows. Due to space limitations, I’m unable to include the full list here, but you can add them based on the provided text.)
It is crucial for users of the affected Ubuntu versions to promptly apply the provided patches to mitigate the risks associated with these vulnerabilities and ensure the security of their systems.