RSA PKCS#1 v1.5 padding oracle via legacy envelope key format downgrade in Amazon S3 Encryption Client for .NET

{
                    "vendor": "Amazon",
                    "product": "Amazon.Extensions.S3.Encryption",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "2.1.0",
                            "lessThanOrEqual": "2.*",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "3.0.0",
                            "lessThanOrEqual": "3.2.1",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "4.0.0",
                            "lessThanOrEqual": "4.0.2",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }