Amazon Linux 2 Security Advisory: ALAS-2019-1172
Advisory Release Date: 2019-03-08 00:46 Pacific
Go mishandles P-521 and P-384 elliptic curves, which allows attackers to cause a denial of service (CPU consumption) or possibly conduct ECDH private key recovery attacks.(CVE-2019-6486 )
Note: This CVE is also fixed in golang-1.11.3-2.amzn2.0.2 in the golang1.11 extras repository.
Run yum update golang to update your system.