CVE-2021-23839 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2021-23839 Interim 1 67 2023-02-02T01:07:27Z current 2021-05-30T14:48:28Z 2023-02-02T01:07:27Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2021-23839 OpenSSL 1.0.2 supports SSLv2. If a client attempts to negotiate SSLv2 with a server that is configured to support both SSLv2 and more recent SSL and TLS versions then a check is made for a version rollback attack when unpadding an RSA signature. Clients that support SSL or TLS versions greater than SSLv2 are supposed to use a special form of padding. A server that supports greater than SSLv2 is supposed to reject connection attempts from a client where this special form of padding is present, because this indicates that a version rollback has occurred (i.e. both client and server support greater than SSLv2, and yet this is the version that is being requested). The implementation of this padding check inverted the logic so that the connection attempt is accepted if the padding is present, and rejected if it is absent. This means that such as server will accept a connection if a version rollback attack has occurred. Further the server will erroneously reject a connection if a normal SSLv2 connection attempt is made. Only OpenSSL 1.0.2 servers from version 1.0.2s to 1.0.2x are affected by this issue. In order to be vulnerable a 1.0.2 server must: 1) have configured SSLv2 support at compile time (this is off by default), 2) have configured SSLv2 support at runtime (this is off by default), 3) have configured SSLv2 ciphersuites (these are not in the default ciphersuite list) OpenSSL 1.1.1 does not have SSLv2 support and therefore is not vulnerable to this issue. The underlying error is in the implementation of the RSA_padding_check_SSLv23() function. This also affects the RSA_SSLV23_PADDING padding mode used by various other functions. Although 1.1.1 does not support SSLv2 the RSA_padding_check_SSLv23() function still exists, as does the RSA_SSLV23_PADDING padding mode. Applications that directly call that function or use that padding mode will encounter this issue. However since there is no support for the SSLv2 protocol in 1.1.1 this is considered a bug and not a security issue in that version. OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.0.2y (Affected 1.0.2s-1.0.2x). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://www.suse.com/support/security/rating/ SUSE Security Ratings HPE Helion OpenStack 8 SUSE CaaS Platform 4.0 SUSE Enterprise Storage 6 SUSE Linux Enterprise Module for Basesystem 15 SP1 SUSE Linux Enterprise Module for Legacy 15 SP1 SUSE Linux Enterprise Module for Basesystem 15 SP2 SUSE Linux Enterprise Module for Legacy 15 SP2 SUSE Linux Enterprise Module for Basesystem 15 SP1 SUSE Linux Enterprise Module for Basesystem 15 SP2 SUSE Linux Enterprise Module for Legacy 12 SUSE Linux Enterprise High Performance Computing 12 SP5 SUSE Linux Enterprise Module for Basesystem 15 SP1 SUSE Linux Enterprise Module for Legacy 15 SP1 SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS SUSE Linux Enterprise Module for Basesystem 15 SP2 SUSE Linux Enterprise Module for Legacy 15 SP2 SUSE Linux Enterprise High Performance Computing 15-LTSS SUSE Linux Enterprise Point of Service 11 SP3 SUSE Linux Enterprise Point of Service Image Server 12 SP2 SUSE Linux Enterprise Server 11 SP1 for Teradata SUSE Linux Enterprise Server 11 SP3 for Teradata SUSE Linux Enterprise Server 11 SP4 LTSS SUSE Linux Enterprise Module for Legacy 12 SUSE Linux Enterprise Server 12 SP2-BCL SUSE Linux Enterprise Server 12 SP2-ESPOS SUSE Linux Enterprise Server 12 SP2-LTSS SUSE Linux Enterprise Module for Legacy 12 SUSE Linux Enterprise Server 12 SP3-BCL SUSE Linux Enterprise Server 12 SP3-ESPOS SUSE Linux Enterprise Server 12 SP3-LTSS SUSE Linux Enterprise Module for Legacy 12 SUSE Linux Enterprise Server 12 SP4-ESPOS SUSE Linux Enterprise Server 12 SP4-LTSS SUSE Linux Enterprise Module for Legacy 12 SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Software Development Kit 12 SP5 SUSE Linux Enterprise Module for Basesystem 15 SP1 SUSE Linux Enterprise Module for Legacy 15 SP1 SUSE Linux Enterprise Server 15 SP1-LTSS SUSE Linux Enterprise Module for Basesystem 15 SP2 SUSE Linux Enterprise Module for Legacy 15 SP2 SUSE Linux Enterprise Server 15-ESPOS SUSE Linux Enterprise Server 15-LTSS SUSE Linux Enterprise Server Business Critical Linux 15 SP1 SUSE Linux Enterprise Server Teradata 12 SP3 SUSE Linux Enterprise Module for Legacy 12 SUSE Linux Enterprise Server for SAP Applications 12 SP2 SUSE Linux Enterprise Module for Legacy 12 SUSE Linux Enterprise Server for SAP Applications 12 SP3 SUSE Linux Enterprise Module for Legacy 12 SUSE Linux Enterprise Server for SAP Applications 12 SP4 SUSE Linux Enterprise Module for Legacy 12 SUSE Linux Enterprise Server for SAP Applications 12 SP5 SUSE Linux Enterprise Software Development Kit 12 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SUSE Linux Enterprise Module for Basesystem 15 SP1 SUSE Linux Enterprise Module for Legacy 15 SP1 SUSE Linux Enterprise Server for SAP Applications 15 SP1 SUSE Linux Enterprise Module for Basesystem 15 SP2 SUSE Linux Enterprise Module for Legacy 15 SP2 SUSE Linux Enterprise Module for Basesystem 15 SP1 SUSE Linux Enterprise Module for Legacy 15 SP1 SUSE Manager Proxy 4.0 SUSE Linux Enterprise Module for Basesystem 15 SP2 SUSE Linux Enterprise Module for Legacy 15 SP2 SUSE Linux Enterprise Module for Basesystem 15 SP1 SUSE Linux Enterprise Module for Legacy 15 SP1 SUSE Manager Retail Branch Server 4.0 SUSE Linux Enterprise Module for Basesystem 15 SP2 SUSE Linux Enterprise Module for Legacy 15 SP2 SUSE Linux Enterprise Module for Basesystem 15 SP1 SUSE Linux Enterprise Module for Legacy 15 SP1 SUSE Manager Server 4.0 SUSE Linux Enterprise Module for Basesystem 15 SP2 SUSE Linux Enterprise Module for Legacy 15 SP2 SUSE OpenStack Cloud 7 SUSE OpenStack Cloud 8 SUSE OpenStack Cloud 9 SUSE OpenStack Cloud Crowbar 8 SUSE OpenStack Cloud Crowbar 9 Security Module for SUSE Linux Enterprise 11 compat-openssl098 libopenssl-1_0_0-devel libopenssl-1_1-devel libopenssl-1_1-devel-32bit libopenssl-devel libopenssl0_9_8 libopenssl0_9_8-32bit libopenssl1_0_0 libopenssl1_0_0-32bit libopenssl1_0_0-hmac libopenssl1_0_0-hmac-32bit libopenssl1_1 libopenssl1_1-32bit libopenssl1_1-hmac libopenssl1_1-hmac-32bit openssl openssl-1_0_0 openssl-1_0_0-doc openssl-1_1 openssl-doc openssl1 libopenssl-devel as a component of HPE Helion OpenStack 8 libopenssl1_0_0 as a component of HPE Helion OpenStack 8 libopenssl1_0_0-32bit as a component of HPE Helion OpenStack 8 libopenssl1_0_0-hmac as a component of HPE Helion OpenStack 8 libopenssl1_0_0-hmac-32bit as a component of HPE Helion OpenStack 8 openssl as a component of HPE Helion OpenStack 8 openssl-doc as a component of HPE Helion OpenStack 8 libopenssl-devel as a component of SUSE CaaS Platform 4.0 openssl as a component of SUSE CaaS Platform 4.0 libopenssl-1_0_0-devel as a component of SUSE CaaS Platform 4.0 libopenssl1_0_0 as a component of SUSE CaaS Platform 4.0 openssl-1_0_0 as a component of SUSE CaaS Platform 4.0 libopenssl-1_1-devel as a component of SUSE CaaS Platform 4.0 libopenssl-1_1-devel-32bit as a component of SUSE CaaS Platform 4.0 libopenssl1_1 as a component of SUSE CaaS Platform 4.0 libopenssl1_1-32bit as a component of SUSE CaaS Platform 4.0 libopenssl1_1-hmac as a component of SUSE CaaS Platform 4.0 libopenssl1_1-hmac-32bit as a component of SUSE CaaS Platform 4.0 openssl-1_1 as a component of SUSE CaaS Platform 4.0 openssl as a component of SUSE Enterprise Storage 6 libopenssl1_0_0 as a component of SUSE Enterprise Storage 6 openssl-1_0_0 as a component of SUSE Enterprise Storage 6 openssl-1_1 as a component of SUSE Enterprise Storage 6 openssl as a component of SUSE Linux Enterprise High Performance Computing 12 SP5 openssl-1_0_0 as a component of SUSE Linux Enterprise High Performance Computing 12 SP5 openssl-1_1 as a component of SUSE Linux Enterprise High Performance Computing 12 SP5 libopenssl-devel as a component of SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS openssl as a component of SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS libopenssl-1_1-devel as a component of SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS libopenssl-1_1-devel-32bit as a component of SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS libopenssl1_1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS libopenssl1_1-32bit as a component of SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS libopenssl1_1-hmac as a component of SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS libopenssl1_1-hmac-32bit as a component of SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS openssl-1_1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS libopenssl-devel as a component of SUSE Linux Enterprise High Performance Computing 15-LTSS openssl as a component of SUSE Linux Enterprise High Performance Computing 15-LTSS libopenssl-1_1-devel as a component of SUSE Linux Enterprise High Performance Computing 15-LTSS libopenssl1_1 as a component of SUSE Linux Enterprise High Performance Computing 15-LTSS libopenssl1_1-32bit as a component of SUSE Linux Enterprise High Performance Computing 15-LTSS libopenssl1_1-hmac as a component of SUSE Linux Enterprise High Performance Computing 15-LTSS libopenssl1_1-hmac-32bit as a component of SUSE Linux Enterprise High Performance Computing 15-LTSS openssl-1_1 as a component of SUSE Linux Enterprise High Performance Computing 15-LTSS libopenssl-devel as a component of SUSE Linux Enterprise Module for Basesystem 15 SP1 openssl as a component of SUSE Linux Enterprise Module for Basesystem 15 SP1 libopenssl-1_1-devel as a component of SUSE Linux Enterprise Module for Basesystem 15 SP1 libopenssl-1_1-devel-32bit as a component of SUSE Linux Enterprise Module for Basesystem 15 SP1 libopenssl1_1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP1 libopenssl1_1-32bit as a component of SUSE Linux Enterprise Module for Basesystem 15 SP1 libopenssl1_1-hmac as a component of SUSE Linux Enterprise Module for Basesystem 15 SP1 libopenssl1_1-hmac-32bit as a component of SUSE Linux Enterprise Module for Basesystem 15 SP1 openssl-1_1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP1 libopenssl-devel as a component of SUSE Linux Enterprise Module for Basesystem 15 SP2 openssl as a component of SUSE Linux Enterprise Module for Basesystem 15 SP2 libopenssl-1_1-devel as a component of SUSE Linux Enterprise Module for Basesystem 15 SP2 libopenssl1_1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP2 libopenssl1_1-32bit as a component of SUSE Linux Enterprise Module for Basesystem 15 SP2 libopenssl1_1-hmac as a component of SUSE Linux Enterprise Module for Basesystem 15 SP2 libopenssl1_1-hmac-32bit as a component of SUSE Linux Enterprise Module for Basesystem 15 SP2 openssl-1_1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP2 libopenssl0_9_8 as a component of SUSE Linux Enterprise Module for Legacy 12 libopenssl0_9_8-32bit as a component of SUSE Linux Enterprise Module for Legacy 12 compat-openssl098 as a component of SUSE Linux Enterprise Module for Legacy 12 libopenssl-1_0_0-devel as a component of SUSE Linux Enterprise Module for Legacy 15 SP1 libopenssl1_0_0 as a component of SUSE Linux Enterprise Module for Legacy 15 SP1 openssl-1_0_0 as a component of SUSE Linux Enterprise Module for Legacy 15 SP1 libopenssl-1_0_0-devel as a component of SUSE Linux Enterprise Module for Legacy 15 SP2 libopenssl1_0_0 as a component of SUSE Linux Enterprise Module for Legacy 15 SP2 openssl-1_0_0 as a component of SUSE Linux Enterprise Module for Legacy 15 SP2 openssl as a component of SUSE Linux Enterprise Point of Service 11 SP3 openssl as a component of SUSE Linux Enterprise Point of Service Image Server 12 SP2 openssl as a component of SUSE Linux Enterprise Server 11 SP1 for Teradata openssl1 as a component of SUSE Linux Enterprise Server 11 SP1 for Teradata openssl as a component of SUSE Linux Enterprise Server 11 SP3 for Teradata openssl1 as a component of SUSE Linux Enterprise Server 11 SP3 for Teradata openssl as a component of SUSE Linux Enterprise Server 11 SP4 LTSS libopenssl-devel as a component of SUSE Linux Enterprise Server 12 SP2-BCL libopenssl1_0_0 as a component of SUSE Linux Enterprise Server 12 SP2-BCL libopenssl1_0_0-32bit as a component of SUSE Linux Enterprise Server 12 SP2-BCL libopenssl1_0_0-hmac as a component of SUSE Linux Enterprise Server 12 SP2-BCL libopenssl1_0_0-hmac-32bit as a component of SUSE Linux Enterprise Server 12 SP2-BCL openssl as a component of SUSE Linux Enterprise Server 12 SP2-BCL openssl-doc as a component of SUSE Linux Enterprise Server 12 SP2-BCL libopenssl-devel as a component of SUSE Linux Enterprise Server 12 SP2-ESPOS libopenssl1_0_0 as a component of SUSE Linux Enterprise Server 12 SP2-ESPOS libopenssl1_0_0-32bit as a component of SUSE Linux Enterprise Server 12 SP2-ESPOS libopenssl1_0_0-hmac as a component of SUSE Linux Enterprise Server 12 SP2-ESPOS libopenssl1_0_0-hmac-32bit as a component of SUSE Linux Enterprise Server 12 SP2-ESPOS openssl as a component of SUSE Linux Enterprise Server 12 SP2-ESPOS openssl-doc as a component of SUSE Linux Enterprise Server 12 SP2-ESPOS libopenssl-devel as a component of SUSE Linux Enterprise Server 12 SP2-LTSS libopenssl1_0_0 as a component of SUSE Linux Enterprise Server 12 SP2-LTSS libopenssl1_0_0-32bit as a component of SUSE Linux Enterprise Server 12 SP2-LTSS libopenssl1_0_0-hmac as a component of SUSE Linux Enterprise Server 12 SP2-LTSS libopenssl1_0_0-hmac-32bit as a component of SUSE Linux Enterprise Server 12 SP2-LTSS openssl as a component of SUSE Linux Enterprise Server 12 SP2-LTSS openssl-doc as a component of SUSE Linux Enterprise Server 12 SP2-LTSS libopenssl-devel as a component of SUSE Linux Enterprise Server 12 SP3-BCL libopenssl1_0_0 as a component of SUSE Linux Enterprise Server 12 SP3-BCL libopenssl1_0_0-32bit as a component of SUSE Linux Enterprise Server 12 SP3-BCL libopenssl1_0_0-hmac as a component of SUSE Linux Enterprise Server 12 SP3-BCL libopenssl1_0_0-hmac-32bit as a component of SUSE Linux Enterprise Server 12 SP3-BCL openssl as a component of SUSE Linux Enterprise Server 12 SP3-BCL openssl-doc as a component of SUSE Linux Enterprise Server 12 SP3-BCL libopenssl-devel as a component of SUSE Linux Enterprise Server 12 SP3-ESPOS libopenssl1_0_0 as a component of SUSE Linux Enterprise Server 12 SP3-ESPOS libopenssl1_0_0-32bit as a component of SUSE Linux Enterprise Server 12 SP3-ESPOS libopenssl1_0_0-hmac as a component of SUSE Linux Enterprise Server 12 SP3-ESPOS libopenssl1_0_0-hmac-32bit as a component of SUSE Linux Enterprise Server 12 SP3-ESPOS openssl as a component of SUSE Linux Enterprise Server 12 SP3-ESPOS openssl-doc as a component of SUSE Linux Enterprise Server 12 SP3-ESPOS libopenssl-devel as a component of SUSE Linux Enterprise Server 12 SP3-LTSS libopenssl1_0_0 as a component of SUSE Linux Enterprise Server 12 SP3-LTSS libopenssl1_0_0-32bit as a component of SUSE Linux Enterprise Server 12 SP3-LTSS libopenssl1_0_0-hmac as a component of SUSE Linux Enterprise Server 12 SP3-LTSS libopenssl1_0_0-hmac-32bit as a component of SUSE Linux Enterprise Server 12 SP3-LTSS openssl as a component of SUSE Linux Enterprise Server 12 SP3-LTSS openssl-doc as a component of SUSE Linux Enterprise Server 12 SP3-LTSS libopenssl-devel as a component of SUSE Linux Enterprise Server 12 SP4-ESPOS openssl as a component of SUSE Linux Enterprise Server 12 SP4-ESPOS libopenssl-1_0_0-devel as a component of SUSE Linux Enterprise Server 12 SP4-ESPOS libopenssl1_0_0 as a component of SUSE Linux Enterprise Server 12 SP4-ESPOS libopenssl1_0_0-32bit as a component of SUSE Linux Enterprise Server 12 SP4-ESPOS libopenssl1_0_0-hmac as a component of SUSE Linux Enterprise Server 12 SP4-ESPOS libopenssl1_0_0-hmac-32bit as a component of SUSE Linux Enterprise Server 12 SP4-ESPOS openssl-1_0_0 as a component of SUSE Linux Enterprise Server 12 SP4-ESPOS openssl-1_0_0-doc as a component of SUSE Linux Enterprise Server 12 SP4-ESPOS libopenssl1_1 as a component of SUSE Linux Enterprise Server 12 SP4-ESPOS libopenssl1_1-32bit as a component of SUSE Linux Enterprise Server 12 SP4-ESPOS libopenssl1_1-hmac as a component of SUSE Linux Enterprise Server 12 SP4-ESPOS libopenssl1_1-hmac-32bit as a component of SUSE Linux Enterprise Server 12 SP4-ESPOS openssl-1_1 as a component of SUSE Linux Enterprise Server 12 SP4-ESPOS libopenssl-devel as a component of SUSE Linux Enterprise Server 12 SP4-LTSS openssl as a component of SUSE Linux Enterprise Server 12 SP4-LTSS libopenssl-1_0_0-devel as a component of SUSE Linux Enterprise Server 12 SP4-LTSS libopenssl1_0_0 as a component of SUSE Linux Enterprise Server 12 SP4-LTSS libopenssl1_0_0-32bit as a component of SUSE Linux Enterprise Server 12 SP4-LTSS libopenssl1_0_0-hmac as a component of SUSE Linux Enterprise Server 12 SP4-LTSS libopenssl1_0_0-hmac-32bit as a component of SUSE Linux Enterprise Server 12 SP4-LTSS openssl-1_0_0 as a component of SUSE Linux Enterprise Server 12 SP4-LTSS openssl-1_0_0-doc as a component of SUSE Linux Enterprise Server 12 SP4-LTSS libopenssl1_1 as a component of SUSE Linux Enterprise Server 12 SP4-LTSS libopenssl1_1-32bit as a component of SUSE Linux Enterprise Server 12 SP4-LTSS libopenssl1_1-hmac as a component of SUSE Linux Enterprise Server 12 SP4-LTSS libopenssl1_1-hmac-32bit as a component of SUSE Linux Enterprise Server 12 SP4-LTSS openssl-1_1 as a component of SUSE Linux Enterprise Server 12 SP4-LTSS libopenssl-devel as a component of SUSE Linux Enterprise Server 12 SP5 openssl as a component of SUSE Linux Enterprise Server 12 SP5 libopenssl-1_0_0-devel as a component of SUSE Linux Enterprise Server 12 SP5 libopenssl1_0_0 as a component of SUSE Linux Enterprise Server 12 SP5 libopenssl1_0_0-32bit as a component of SUSE Linux Enterprise Server 12 SP5 libopenssl1_0_0-hmac as a component of SUSE Linux Enterprise Server 12 SP5 libopenssl1_0_0-hmac-32bit as a component of SUSE Linux Enterprise Server 12 SP5 openssl-1_0_0 as a component of SUSE Linux Enterprise Server 12 SP5 openssl-1_0_0-doc as a component of SUSE Linux Enterprise Server 12 SP5 libopenssl1_1 as a component of SUSE Linux Enterprise Server 12 SP5 libopenssl1_1-32bit as a component of SUSE Linux Enterprise Server 12 SP5 libopenssl1_1-hmac as a component of SUSE Linux Enterprise Server 12 SP5 libopenssl1_1-hmac-32bit as a component of SUSE Linux Enterprise Server 12 SP5 openssl-1_1 as a component of SUSE Linux Enterprise Server 12 SP5 libopenssl-devel as a component of SUSE Linux Enterprise Server 15 SP1-LTSS openssl as a component of SUSE Linux Enterprise Server 15 SP1-LTSS libopenssl-1_0_0-devel as a component of SUSE Linux Enterprise Server 15 SP1-LTSS libopenssl1_0_0 as a component of SUSE Linux Enterprise Server 15 SP1-LTSS openssl-1_0_0 as a component of SUSE Linux Enterprise Server 15 SP1-LTSS libopenssl-1_1-devel as a component of SUSE Linux Enterprise Server 15 SP1-LTSS libopenssl-1_1-devel-32bit as a component of SUSE Linux Enterprise Server 15 SP1-LTSS libopenssl1_1 as a component of SUSE Linux Enterprise Server 15 SP1-LTSS libopenssl1_1-32bit as a component of SUSE Linux Enterprise Server 15 SP1-LTSS libopenssl1_1-hmac as a component of SUSE Linux Enterprise Server 15 SP1-LTSS libopenssl1_1-hmac-32bit as a component of SUSE Linux Enterprise Server 15 SP1-LTSS openssl-1_1 as a component of SUSE Linux Enterprise Server 15 SP1-LTSS openssl as a component of SUSE Linux Enterprise Server 15-ESPOS openssl-1_1 as a component of SUSE Linux Enterprise Server 15-ESPOS libopenssl-devel as a component of SUSE Linux Enterprise Server 15-LTSS openssl as a component of SUSE Linux Enterprise Server 15-LTSS libopenssl-1_0_0-devel as a component of SUSE Linux Enterprise Server 15-LTSS libopenssl1_0_0 as a component of SUSE Linux Enterprise Server 15-LTSS openssl-1_0_0 as a component of SUSE Linux Enterprise Server 15-LTSS libopenssl-1_1-devel as a component of SUSE Linux Enterprise Server 15-LTSS libopenssl1_1 as a component of SUSE Linux Enterprise Server 15-LTSS libopenssl1_1-32bit as a component of SUSE Linux Enterprise Server 15-LTSS libopenssl1_1-hmac as a component of SUSE Linux Enterprise Server 15-LTSS libopenssl1_1-hmac-32bit as a component of SUSE Linux Enterprise Server 15-LTSS openssl-1_1 as a component of SUSE Linux Enterprise Server 15-LTSS openssl as a component of SUSE Linux Enterprise Server Business Critical Linux 15 SP1 openssl-1_0_0 as a component of SUSE Linux Enterprise Server Business Critical Linux 15 SP1 openssl-1_1 as a component of SUSE Linux Enterprise Server Business Critical Linux 15 SP1 openssl as a component of SUSE Linux Enterprise Server Teradata 12 SP3 libopenssl-devel as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP2 libopenssl1_0_0 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP2 libopenssl1_0_0-32bit as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP2 libopenssl1_0_0-hmac as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP2 libopenssl1_0_0-hmac-32bit as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP2 openssl as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP2 openssl-doc as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP2 libopenssl0_9_8 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP3 compat-openssl098 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP3 libopenssl-devel as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP3 libopenssl1_0_0 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP3 libopenssl1_0_0-32bit as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP3 libopenssl1_0_0-hmac as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP3 libopenssl1_0_0-hmac-32bit as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP3 openssl as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP3 openssl-doc as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP3 libopenssl0_9_8 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 compat-openssl098 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 libopenssl-devel as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 openssl as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 libopenssl-1_0_0-devel as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 libopenssl1_0_0 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 libopenssl1_0_0-32bit as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 libopenssl1_0_0-hmac as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 libopenssl1_0_0-hmac-32bit as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 openssl-1_0_0 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 openssl-1_0_0-doc as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 libopenssl1_1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 libopenssl1_1-32bit as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 libopenssl1_1-hmac as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 libopenssl1_1-hmac-32bit as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 openssl-1_1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP4 libopenssl0_9_8 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 compat-openssl098 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 openssl as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 openssl-1_0_0 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 openssl-1_1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 libopenssl-devel as a component of SUSE Linux Enterprise Server for SAP Applications 15 openssl as a component of SUSE Linux Enterprise Server for SAP Applications 15 libopenssl-1_0_0-devel as a component of SUSE Linux Enterprise Server for SAP Applications 15 libopenssl1_0_0 as a component of SUSE Linux Enterprise Server for SAP Applications 15 openssl-1_0_0 as a component of SUSE Linux Enterprise Server for SAP Applications 15 libopenssl-1_1-devel as a component of SUSE Linux Enterprise Server for SAP Applications 15 libopenssl1_1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 libopenssl1_1-32bit as a component of SUSE Linux Enterprise Server for SAP Applications 15 libopenssl1_1-hmac as a component of SUSE Linux Enterprise Server for SAP Applications 15 libopenssl1_1-hmac-32bit as a component of SUSE Linux Enterprise Server for SAP Applications 15 openssl-1_1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 libopenssl-devel as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP1 openssl as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP1 libopenssl-1_0_0-devel as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP1 libopenssl1_0_0 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP1 openssl-1_0_0 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP1 libopenssl-1_1-devel as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP1 libopenssl-1_1-devel-32bit as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP1 libopenssl1_1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP1 libopenssl1_1-32bit as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP1 libopenssl1_1-hmac as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP1 libopenssl1_1-hmac-32bit as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP1 openssl-1_1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP1 libopenssl-1_1-devel as a component of SUSE Linux Enterprise Software Development Kit 12 SP5 libopenssl-1_1-devel-32bit as a component of SUSE Linux Enterprise Software Development Kit 12 SP5 openssl-1_1 as a component of SUSE Linux Enterprise Software Development Kit 12 SP5 openssl as a component of SUSE Manager Proxy 4.0 openssl-1_0_0 as a component of SUSE Manager Proxy 4.0 openssl-1_1 as a component of SUSE Manager Proxy 4.0 openssl as a component of SUSE Manager Retail Branch Server 4.0 openssl-1_0_0 as a component of SUSE Manager Retail Branch Server 4.0 openssl-1_1 as a component of SUSE Manager Retail Branch Server 4.0 openssl as a component of SUSE Manager Server 4.0 openssl-1_0_0 as a component of SUSE Manager Server 4.0 openssl-1_1 as a component of SUSE Manager Server 4.0 libopenssl-devel as a component of SUSE OpenStack Cloud 7 libopenssl1_0_0 as a component of SUSE OpenStack Cloud 7 libopenssl1_0_0-32bit as a component of SUSE OpenStack Cloud 7 libopenssl1_0_0-hmac as a component of SUSE OpenStack Cloud 7 libopenssl1_0_0-hmac-32bit as a component of SUSE OpenStack Cloud 7 openssl as a component of SUSE OpenStack Cloud 7 openssl-doc as a component of SUSE OpenStack Cloud 7 libopenssl-devel as a component of SUSE OpenStack Cloud 8 libopenssl1_0_0 as a component of SUSE OpenStack Cloud 8 libopenssl1_0_0-32bit as a component of SUSE OpenStack Cloud 8 libopenssl1_0_0-hmac as a component of SUSE OpenStack Cloud 8 libopenssl1_0_0-hmac-32bit as a component of SUSE OpenStack Cloud 8 openssl as a component of SUSE OpenStack Cloud 8 openssl-doc as a component of SUSE OpenStack Cloud 8 libopenssl-devel as a component of SUSE OpenStack Cloud 9 openssl as a component of SUSE OpenStack Cloud 9 libopenssl-1_0_0-devel as a component of SUSE OpenStack Cloud 9 libopenssl1_0_0 as a component of SUSE OpenStack Cloud 9 libopenssl1_0_0-32bit as a component of SUSE OpenStack Cloud 9 libopenssl1_0_0-hmac as a component of SUSE OpenStack Cloud 9 libopenssl1_0_0-hmac-32bit as a component of SUSE OpenStack Cloud 9 openssl-1_0_0 as a component of SUSE OpenStack Cloud 9 openssl-1_0_0-doc as a component of SUSE OpenStack Cloud 9 libopenssl1_1 as a component of SUSE OpenStack Cloud 9 libopenssl1_1-32bit as a component of SUSE OpenStack Cloud 9 libopenssl1_1-hmac as a component of SUSE OpenStack Cloud 9 libopenssl1_1-hmac-32bit as a component of SUSE OpenStack Cloud 9 openssl-1_1 as a component of SUSE OpenStack Cloud 9 libopenssl-devel as a component of SUSE OpenStack Cloud Crowbar 8 libopenssl1_0_0 as a component of SUSE OpenStack Cloud Crowbar 8 libopenssl1_0_0-32bit as a component of SUSE OpenStack Cloud Crowbar 8 libopenssl1_0_0-hmac as a component of SUSE OpenStack Cloud Crowbar 8 libopenssl1_0_0-hmac-32bit as a component of SUSE OpenStack Cloud Crowbar 8 openssl as a component of SUSE OpenStack Cloud Crowbar 8 openssl-doc as a component of SUSE OpenStack Cloud Crowbar 8 libopenssl-devel as a component of SUSE OpenStack Cloud Crowbar 9 openssl as a component of SUSE OpenStack Cloud Crowbar 9 libopenssl-1_0_0-devel as a component of SUSE OpenStack Cloud Crowbar 9 libopenssl1_0_0 as a component of SUSE OpenStack Cloud Crowbar 9 libopenssl1_0_0-32bit as a component of SUSE OpenStack Cloud Crowbar 9 libopenssl1_0_0-hmac as a component of SUSE OpenStack Cloud Crowbar 9 libopenssl1_0_0-hmac-32bit as a component of SUSE OpenStack Cloud Crowbar 9 openssl-1_0_0 as a component of SUSE OpenStack Cloud Crowbar 9 openssl-1_0_0-doc as a component of SUSE OpenStack Cloud Crowbar 9 libopenssl1_1 as a component of SUSE OpenStack Cloud Crowbar 9 libopenssl1_1-32bit as a component of SUSE OpenStack Cloud Crowbar 9 libopenssl1_1-hmac as a component of SUSE OpenStack Cloud Crowbar 9 libopenssl1_1-hmac-32bit as a component of SUSE OpenStack Cloud Crowbar 9 openssl-1_1 as a component of SUSE OpenStack Cloud Crowbar 9 openssl1 as a component of Security Module for SUSE Linux Enterprise 11 OpenSSL 1.0.2 supports SSLv2. If a client attempts to negotiate SSLv2 with a server that is configured to support both SSLv2 and more recent SSL and TLS versions then a check is made for a version rollback attack when unpadding an RSA signature. Clients that support SSL or TLS versions greater than SSLv2 are supposed to use a special form of padding. A server that supports greater than SSLv2 is supposed to reject connection attempts from a client where this special form of padding is present, because this indicates that a version rollback has occurred (i.e. both client and server support greater than SSLv2, and yet this is the version that is being requested). The implementation of this padding check inverted the logic so that the connection attempt is accepted if the padding is present, and rejected if it is absent. This means that such as server will accept a connection if a version rollback attack has occurred. Further the server will erroneously reject a connection if a normal SSLv2 connection attempt is made. Only OpenSSL 1.0.2 servers from version 1.0.2s to 1.0.2x are affected by this issue. In order to be vulnerable a 1.0.2 server must: 1) have configured SSLv2 support at compile time (this is off by default), 2) have configured SSLv2 support at runtime (this is off by default), 3) have configured SSLv2 ciphersuites (these are not in the default ciphersuite list) OpenSSL 1.1.1 does not have SSLv2 support and therefore is not vulnerable to this issue. The underlying error is in the implementation of the RSA_padding_check_SSLv23() function. This also affects the RSA_SSLV23_PADDING padding mode used by various other functions. Although 1.1.1 does not support SSLv2 the RSA_padding_check_SSLv23() function still exists, as does the RSA_SSLV23_PADDING padding mode. Applications that directly call that function or use that padding mode will encounter this issue. However since there is no support for the SSLv2 protocol in 1.1.1 this is considered a bug and not a security issue in that version. OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.0.2y (Affected 1.0.2s-1.0.2x). CVE-2021-23839 HPE Helion OpenStack 8:libopenssl-devel HPE Helion OpenStack 8:libopenssl1_0_0 HPE Helion OpenStack 8:libopenssl1_0_0-32bit HPE Helion OpenStack 8:libopenssl1_0_0-hmac HPE Helion OpenStack 8:libopenssl1_0_0-hmac-32bit HPE Helion OpenStack 8:openssl HPE Helion OpenStack 8:openssl-doc SUSE CaaS Platform 4.0:libopenssl-1_0_0-devel SUSE CaaS Platform 4.0:libopenssl-1_1-devel SUSE CaaS Platform 4.0:libopenssl-1_1-devel-32bit SUSE CaaS Platform 4.0:libopenssl-devel SUSE CaaS Platform 4.0:libopenssl1_0_0 SUSE CaaS Platform 4.0:libopenssl1_1 SUSE CaaS Platform 4.0:libopenssl1_1-32bit SUSE CaaS Platform 4.0:libopenssl1_1-hmac SUSE CaaS Platform 4.0:libopenssl1_1-hmac-32bit SUSE CaaS Platform 4.0:openssl SUSE CaaS Platform 4.0:openssl-1_0_0 SUSE CaaS Platform 4.0:openssl-1_1 SUSE Enterprise Storage 6:libopenssl1_0_0 SUSE Enterprise Storage 6:openssl SUSE Enterprise Storage 6:openssl-1_0_0 SUSE Enterprise Storage 6:openssl-1_1 SUSE Linux Enterprise High Performance Computing 12 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