Important: kernel

Issue Overview:

NOTE: CVE-2018-14634 was already fixed in the 4.14 kernel released with the 2018.03 AMI release. The advisory release date does not accurately reflect the date this was fixed. The actual date of the fix being released is: 2018-04-23.

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

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:

i686:  
    kernel-devel-4.14.26-46.32.amzn1.i686  
    kernel-debuginfo-4.14.26-46.32.amzn1.i686  
    perf-4.14.26-46.32.amzn1.i686  
    kernel-tools-4.14.26-46.32.amzn1.i686  
    kernel-tools-devel-4.14.26-46.32.amzn1.i686  
    kernel-headers-4.14.26-46.32.amzn1.i686  
    kernel-tools-debuginfo-4.14.26-46.32.amzn1.i686  
    perf-debuginfo-4.14.26-46.32.amzn1.i686  
    kernel-4.14.26-46.32.amzn1.i686  
    kernel-debuginfo-common-i686-4.14.26-46.32.amzn1.i686  
  
src:  
    kernel-4.14.26-46.32.amzn1.src  
  
x86_64:  
    kernel-4.14.26-46.32.amzn1.x86_64  
    perf-4.14.26-46.32.amzn1.x86_64  
    kernel-tools-4.14.26-46.32.amzn1.x86_64  
    kernel-headers-4.14.26-46.32.amzn1.x86_64  
    kernel-tools-devel-4.14.26-46.32.amzn1.x86_64  
    kernel-tools-debuginfo-4.14.26-46.32.amzn1.x86_64  
    perf-debuginfo-4.14.26-46.32.amzn1.x86_64  
    kernel-devel-4.14.26-46.32.amzn1.x86_64  
    kernel-debuginfo-common-x86_64-4.14.26-46.32.amzn1.x86_64  
    kernel-debuginfo-4.14.26-46.32.amzn1.x86_64  

Additional References

Red Hat: CVE-2018-14634

Mitre: CVE-2018-14634