[ALAS-2021-1516] Amazon Linux AMI 2014.03 - ALAS-2021-1516: medium priority package update for kernel

Package updates are available for Amazon Linux AMI that fix the following vulnerabilities:
CVE-2021-33200:
A flaw was found in kernel/bpf/verifier.c in BPF in the Linux kernel. An incorrect limit is enforced for pointer arithmetic operations which can be abused to perform out-of-bounds reads and writes in kernel memory, leading to local privilege escalation. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
1965458: CVE-2021-33200 kernel: out-of-bounds reads and writes due to enforcing incorrect limits for pointer arithmetic operations by BPF verifier

CVE-2021-29650:
A denial-of-service (DoS) flaw was identified in the Linux kernel due to an incorrect memory barrier in xt_replace_table in net/netfilter/x_tables.c in the netfilter subsystem.
1945388: CVE-2021-29650 kernel: lack a full memory barrier upon the assignment of a new table value in net/netfilter/x_tables.c and include/linux/netfilter/x_tables.h may lead to DoS