USN-8819-3

Details

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

Network file system (NFS) server daemon;
IPv6 networking;
Netfilter; (CVE-2025-38724, CVE-2026-53131, CVE-2026-53221)

Affected Packages

linux-azure

Ubuntu Pro 14.04 LTS

Fixed in:

4.15.0-1207.222~14.04.1

linux-aws-hwe

Ubuntu Pro 16.04 LTS

Fixed in:

4.15.0-1197.210~16.04.1

linux-azure-4.15

Ubuntu Pro 18.04 LTS

Fixed in:

4.15.0-1207.222

References

REPORT

https://ubuntu.com/security/CVE-2025-38724

REPORT

https://ubuntu.com/security/CVE-2026-53131

REPORT

https://ubuntu.com/security/CVE-2026-53221

ADVISORY

https://ubuntu.com/security/notices/USN-8819-3