Important: kernel

Issue Overview:

2024-05-09: CVE-2019-19965 was added to this advisory.

A flaw was found in the Linux kernel. The crypto_report function mishandles resource cleanup on error. A local attacker able to induce the error conditions could use this flaw to crash the system. The highest threat from this vulnerability is to system availability. (CVE-2019-19062)

An out-of-bounds memory write issue was found in the way the Linux kernel’s KVM hypervisor handled the ‘KVM_GET_EMULATED_CPUID’ ioctl(2) request to get CPUID features emulated by the KVM hypervisor. A user or process able to access the ‘/dev/kvm’ device could use this flaw to crash the system, resulting in a denial of service. (CVE-2019-19332)

In the Linux kernel through 5.4.6, there is a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition, aka CID-f70267f379b5. (CVE-2019-19965)

Affected Packages:

kernel

Issue Correction:
Run yum update kernel to update your system.

New Packages:

i686:  
    kernel-debuginfo-common-i686-4.14.165-102.185.amzn1.i686  
    kernel-debuginfo-4.14.165-102.185.amzn1.i686  
    kernel-headers-4.14.165-102.185.amzn1.i686  
    kernel-tools-4.14.165-102.185.amzn1.i686  
    kernel-devel-4.14.165-102.185.amzn1.i686  
    perf-debuginfo-4.14.165-102.185.amzn1.i686  
    kernel-tools-devel-4.14.165-102.185.amzn1.i686  
    perf-4.14.165-102.185.amzn1.i686  
    kernel-4.14.165-102.185.amzn1.i686  
    kernel-tools-debuginfo-4.14.165-102.185.amzn1.i686  
  
src:  
    kernel-4.14.165-102.185.amzn1.src  
  
x86_64:  
    kernel-4.14.165-102.185.amzn1.x86_64  
    kernel-debuginfo-4.14.165-102.185.amzn1.x86_64  
    kernel-tools-4.14.165-102.185.amzn1.x86_64  
    kernel-devel-4.14.165-102.185.amzn1.x86_64  
    perf-debuginfo-4.14.165-102.185.amzn1.x86_64  
    kernel-headers-4.14.165-102.185.amzn1.x86_64  
    kernel-tools-debuginfo-4.14.165-102.185.amzn1.x86_64  
    perf-4.14.165-102.185.amzn1.x86_64  
    kernel-debuginfo-common-x86_64-4.14.165-102.185.amzn1.x86_64  
    kernel-tools-devel-4.14.165-102.185.amzn1.x86_64  

Additional References

Red Hat: CVE-2019-19062, CVE-2019-19332, CVE-2019-19965

Mitre: CVE-2019-19062, CVE-2019-19332, CVE-2019-19965