[ALAS2-2019-1145] Amazon Linux 2 2017.12 - ALAS2-2019-1145: medium priority package update for kernel

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities:
CVE-2018-20169:
An issue was discovered in the Linux kernel before 4.19.9. The USB subsystem mishandles size checks during the reading of an extra descriptor, related to __usb_get_extra_descriptor in drivers/usb/core/usb.c.
1660385:
CVE-2018-20169 kernel: Mishandled size checks during the reading of an extra descriptor

CVE-2018-14625:
A flaw was found where an attacker may be able to have an uncontrolled read to kernel-memory from within a vm guest. A race condition between connect() and close() function may allow an attacker using the AF_VSOCK protocol to gather a 4 byte information leak or possibly impersonate AF_VSOCK messages destined to other clients or leak kernel memory.
1619846:
CVE-2018-14625 kernel: use-after-free Read in vhost_transport_send_pkt