AWS customers’ data and instances are not affected by this issue, and no customer action is required. AWS has designed and implemented its infrastructure with protections against this class of issues. Amazon EC2 instances, including Lambda, Fargate, and other AWS-managed compute and container services protect customer data against GDS through microcode and software based mitigations.
https://aws.amazon.com/security/security-bulletins/AWS-2023-...
AWS customers’ data and instances are not affected by this issue, and no customer action is required. AWS has designed and implemented its infrastructure with protections against this class of issues. Amazon EC2 instances, including Lambda, Fargate, and other AWS-managed compute and container services protect customer data against GDS through microcode and software based mitigations.