Ubuntu
Ubuntu USN-8831-1 Fixes libvirt Vulnerabilities
Ubuntu libvirt updates address an RPC overflow and symbolic-link ownership changes across local trust boundaries. Plan guest shutdown or migration, install release-matched packages, and complete Canonical's required reboot with host recovery access available.
Ubuntu USN-8826-1 Fixes LXC Vulnerabilities
Ubuntu LXC updates address logging-related disclosure and a separate authorization denial of service. Match binary packages and support entitlement to the release, then restart affected containers; the two issues do not share identical Ubuntu scope.
Ubuntu Updates AWS FIPS Kernels for Multiple Vulnerabilities
Ubuntu 24.04 AWS FIPS kernel updates require a reboot and ABI/module checks. Keep the supported FIPS flavor and repository, and verify compliance requirements separately from whether the package transaction succeeds.
Ubuntu Updates AWS and GCP Kernels for Three Vulnerabilities
Ubuntu 18.04 and 16.04 ESM cloud-kernel updates require exact AWS, GCP or GCP FIPS package matching. Stage the appropriate update, check external modules and recovery access, then reboot without substituting another kernel flavor.
Ubuntu Updates IBM Kernels for Multiple Vulnerabilities
Ubuntu 20.04 ESM IBM 5.15 kernel updates address twenty CVEs. Install the IBM-specific packages, reboot and verify modules and workloads; similarly numbered packages from another kernel flavor are not interchangeable.
Ubuntu Fixes Intel IoTG Kernel Vulnerability
Ubuntu 20.04 ESM Intel IoTG 5.15 kernels require stream-specific security packages and a reboot. Confirm repository access, device-driver compatibility and recovery arrangements; an updated package does not prove the machine boots the corrected kernel.
Ubuntu Fixes libpcap Instruction Validation Flaw
Ubuntu libpcap updates fix instruction validation that can crash applications processing crafted data. Update release-matched libraries, including embedded and container copies, then restart affected consumers as needed and check older-release ESM access.
Ubuntu USN-8802-1 Fixes Linux kernel (Oracle) Vulnerabilities
Ubuntu 22.04 and 24.04 Oracle 6.8 kernel updates require matching release and page-size variants. Install the appropriate image packages, reboot, and verify required modules, storage and networking.
Ubuntu USN-8728-2 Fixes Linux kernel (Azure) Vulnerabilities
Ubuntu 24.04 Azure 7.0 kernels need release-specific security packages, a reboot and module validation. Listed CVEs appear in CISA KEV; do not substitute the similarly numbered Ubuntu 26.04 build.
Ubuntu USN-8726-4 Fixes Linux kernel Vulnerabilities
Ubuntu 26.04 Azure and Oracle kernel updates include CVEs listed in CISA KEV. Match the installed kernel family, update its packages and reboot; known exploitation does not establish compromise of every host.