Ubuntu Updates AWS FIPS Kernels for Multiple Vulnerabilities
Tech GuruQuick Answer
Ubuntu 24.04 LTS systems using the AWS FIPS kernel stream are covered by USN-8729-5. Canonical lists source build 6.8.0-1064.67+fips1 and requires a reboot. Keep the AWS FIPS flavor and supported repository; do not replace it with a generic kernel just to obtain a higher version number.
Confirm Scope And Apply The Supported Fix
Next step: Arrange a maintenance window for affected instances, check the required repository access and module compatibility, and verify console or cloud recovery access before rebooting.
Last verified: 2026-09-26 UTC. Recheck the authoritative advisory and supported distribution channel before changing production.
Scope And Authority
| Product scope | Linux kernel (AWS FIPS) vulnerabilities on Ubuntu 24.04 LTS (noble) |
|---|---|
| Advisory | USN-8729-5 |
| CVEs | CVE-2025-71289, CVE-2026-23469, CVE-2026-31420, CVE-2026-31486, CVE-2026-31560, CVE-2026-46158, CVE-2026-46170, CVE-2026-46275, CVE-2026-46315, CVE-2026-52912, CVE-2026-52915, CVE-2026-52916, CVE-2026-52918, CVE-2026-52919, CVE-2026-52921, CVE-2026-52922, CVE-2026-52926, CVE-2026-52941, CVE-2026-53357, CVE-2026-64015, CVE-2026-64018, CVE-2026-64025, CVE-2026-64029, CVE-2026-64032, CVE-2026-64033, CVE-2026-64034, CVE-2026-64039, CVE-2026-64046, CVE-2026-64047, CVE-2026-64048, CVE-2026-64051, CVE-2026-64055, CVE-2026-64056, CVE-2026-64064, CVE-2026-64073, CVE-2026-64083, CVE-2026-64084, CVE-2026-64085, CVE-2026-64086, CVE-2026-64087, CVE-2026-64088, CVE-2026-64089, CVE-2026-64092, CVE-2026-64096, CVE-2026-64097, CVE-2026-64098, CVE-2026-64102, CVE-2026-64103, CVE-2026-64106, CVE-2026-64108, CVE-2026-64109, CVE-2026-64111, CVE-2026-64113, CVE-2026-64114, CVE-2026-64115, CVE-2026-64116, CVE-2026-64118, CVE-2026-64121, CVE-2026-64125, CVE-2026-64126, CVE-2026-64127, CVE-2026-64128, CVE-2026-64133, CVE-2026-64134, CVE-2026-64135, CVE-2026-64136, CVE-2026-64137, CVE-2026-64138, CVE-2026-64144, CVE-2026-64147, CVE-2026-64148, CVE-2026-64153, CVE-2026-64155, CVE-2026-64163, CVE-2026-64165, CVE-2026-64166, CVE-2026-64168, CVE-2026-64170, CVE-2026-64173, CVE-2026-64174, CVE-2026-64177, CVE-2026-64178, CVE-2026-64179, CVE-2026-64180, CVE-2026-64182, CVE-2026-64183, CVE-2026-64184, CVE-2026-64185, CVE-2026-64214, CVE-2026-64217, CVE-2026-64218, CVE-2026-64219, CVE-2026-64220, CVE-2026-64221, CVE-2026-64225, CVE-2026-64231, CVE-2026-64518 |
| Authoritative release date | 2026-09-25 11:35:38.991575 UTC |
| Authority revision date | 2026-09-25 11:35:38.991575 UTC |
| Affected versions | The Ubuntu releases and source packages enumerated in USN-8729-5: Ubuntu 24.04 LTS (noble). |
| Fixed version | noble: linux-aws-fips 6.8.0-1064.67+fips1 |
| CVSS base score | Not provided by the authority |
| CVSS severity | Not provided by the authority |
| Exploitation status | Not stated by the authority; no exploitation claim is inferred. |
What Changed
This advisory groups many kernel vulnerabilities with different component preconditions. The update also changes the ABI. Review external modules and the host's FIPS requirements as separate acceptance checks rather than assuming either follows from a successful package transaction.
What To Validate Now
- Inventory. Locate Linux kernel (AWS FIPS) vulnerabilities on Ubuntu 24.04 LTS (noble) deployments, versions, enabled features, exposure paths, owners, and dependent services.
- Establish applicability. Compare each deployment with the authority's affected-version statement: The Ubuntu releases and source packages enumerated in USN-8729-5: Ubuntu 24.04 LTS (noble). Do not infer applicability from product family or severity alone.
- Remediate. Apply noble: linux-aws-fips 6.8.0-1064.67+fips1 through the supported vendor or project channel, following the current advisory and change-control requirements.
- Validate. Confirm the running kernel after reboot, required cryptographic mode and services, network/storage drivers, and representative workloads. Retain package provenance and any compliance evidence your organization requires; this article does not certify a deployment.
- Retain evidence. Preserve asset and owner identifiers, the applicability decision, before-and-after versions, change approval, installation output, validation results, and any exception or rollback record.
Operational Cautions
Use the exact supported release stream and repository. Test dependencies, clusters, integrations, and rollback before broad deployment; a CVSS rating or reachable feature is not evidence of exploitation.
Evidence To Retain
- Exact product, release stream, package or application version, enabled feature, environment, and accountable owner.
- UTC timestamps, authority revision, approved change record, installer or package-manager output, and resulting version.
- Relevant logs and monitoring evidence, test results, exceptions, compensating controls, and rollback decisions.
Related TechGeeks Resources
Authoritative References
Correction policy: If the authority changes affected versions, fixed versions, severity, exploitation information, mitigations, or required action, TechGeeks will update this notice and its verification date.
