Important: kernel

Issue Overview:

NOTE: CVE-2018-14634 was already fixed in the 4.14 kernel released with the Amazon Linux 2 LTS release. The advisory release date does not accurately reflect the date this was fixed.

An integer overflow flaw was found in the Linux kernel’s create_elf_tables() function. An unprivileged local user with access to SUID (or otherwise privileged) binary could use this flaw to escalate their privileges on the system. This issue has been give the code name Mutagen Astronomy.(CVE-2018-14634 )

Affected Packages:

kernel

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
If you are already running a 4.14 kernel, no action is required.
If you are running an older kernel, run yum update kernel and reboot your instance to update your system.

New Packages:

src:  
    kernel-4.14.15-46.13.amzn2.src  
  
x86_64:  
    kernel-4.14.15-46.13.amzn2.x86_64  
    kernel-headers-4.14.15-46.13.amzn2.x86_64  
    kernel-debuginfo-common-x86_64-4.14.15-46.13.amzn2.x86_64  
    perf-4.14.15-46.13.amzn2.x86_64  
    perf-debuginfo-4.14.15-46.13.amzn2.x86_64  
    python-perf-4.14.15-46.13.amzn2.x86_64  
    python-perf-debuginfo-4.14.15-46.13.amzn2.x86_64  
    kernel-tools-4.14.15-46.13.amzn2.x86_64  
    kernel-tools-devel-4.14.15-46.13.amzn2.x86_64  
    kernel-tools-debuginfo-4.14.15-46.13.amzn2.x86_64  
    kernel-devel-4.14.15-46.13.amzn2.x86_64  
    kernel-debuginfo-4.14.15-46.13.amzn2.x86_64  

Additional References

Red Hat: CVE-2018-14634

Mitre: CVE-2018-14634