- Db2® conforms
with the following industry standards for SQL:
- ISO/IEC 9075-1:2016, Information technology - Database languages - SQL - Part 1: Framework (SQL/Framework)
- ISO/IEC 9075-2:2016, Information technology - Database languages - SQL - Part 2: Foundation (SQL/Foundation)
- ISO/IEC 9075-3:2016, Information technology - Database languages - SQL - Part 3: Call-Level Interface (SQL/CLI)
- ISO/IEC 9075-4:2016, Information technology - Database languages - SQL - Part 4: Persistent Stored Modules (SQL/PSM)
- ISO/IEC 9075-10:2016, Information technology - Database languages - SQL - Part 10: Object Language Bindings (SQL/OLB)
- ISO/IEC 9075-11:2016, Information technology - Database languages - SQL - Part 11: Information and Definition Schemas (SQL/Schemata)
- ISO/IEC 9075-13:2016, Information technology - Database languages - SQL - Part 13: Java Routines and Types (SQL/JRT)
- ISO/IEC 9075-14:2016, Information technology - Database languages - SQL - Part 14: XML-Related Specifications (SQL/XML)
- ISO/IEC 13249-3:2011, Information technology - Database languages - SQL multimedia and application packages - Part 3: Spatial
conforms with the following industry technical report for SQL:
- Character Data Representation Architecture Reference and Registry, at http://www-01.ibm.com/software/globalization/cdra/
- The Unicode Standard, at http://www.unicode.org
- Cryptographic standards
Db2 uses one or more of the following FIPS 140-2 approved cryptographic providers:
- IBMJCEFIPS (certificate 376)
- IBMJSSEFIPS (certificate 409)
- IBM® Crypto for C (ICC) (certificate 3064)
The following behaviour is default starting with Db2 releases that contain KI DT223175:
When a cryptographic algorithm is available in the FIPS 140 certified ICC, Db2 will prefer the algorithm provided by the certified ICC over the non-certified ICC. If the algorithm is not available in the FIPS 140 certified ICC, or the implementation in the certified ICC is affected by a known vulnerability, the uncertified ICC will be used.
Enforcing the use of only FIPS certified ICC To enforce the use of only the FIPS certified ICC, and to disallow any use of the uncertified ICC, strict FIPS mode must be enabled. Enabling strict FIPS mode is done by setting the DB2AUTH registry variable to STRICT_FIPS. If the DB2AUTH variable is already set, multiple options can be separated by commas.
In an environment without a Db2 registry, such as the Data Server Driver, the DB2AUTH registry variable can be set in the environment.
setx DB2AUTH STRICT_FIPS /m
If the LDAP authentication plugins are in use, the FIPS_MODE parameter can be set to STRICT in the
FIPS_MODE=STRICTImportant: Db2 releases that contain KI DT223175 no longer include a FIPS 140 certified ICC on MacOS. Only the uncertified ICC is available.Warning:
In response to CVE-2023-32342, Db2 releases with KI DT223175 will use the non-FIPS ICC for TLS ciphers that use RSA key exchange, as the FIPS certified ICC is vulnerable to CVE-2023-32342. Customers with a requirement to use only FIPS 140 certified cryptographic modules must enable Strict FIPS mode.
In strict FIPS mode, Db2 releases with KI DT223175 will disable all TLS ciphers and versions that are vulnerable to CVE-2023-32342. Note: RSA certificates are not affected by CVE-2023-32342, and do not need to be changed.
The following restrictions will apply to TLS when strict mode is enabled:
- TLS 1.0 and 1.1 will be disabled in strict mode, as TLS 1.1 and prior only support ciphers that use RSA key exchange. If the SSL_VERSIONS DBM CFG parameter is unset, or is set to TLSV1, TLS 1.2 will be enabled in its place.
- TLS 1.2 ciphers that use RSA key exchange (TLS_RSA_*) will be disabled. If there are no remaining ciphers in the SSL_CIPHERSPECS DBM CFG parameter, all supported ECDHE ciphers will be enabled. For instances using RSA certificates, Db2 will automatically prefer TLS_ECDHE_RSA ciphers for TLS 1.2 and no certificate change is required.
- TLS 1.3 is unaffected by CVE-2023-32342
Db2 is compliant with NIST SP 800-131A and provides enhanced and stronger cryptographic keys along with more robust algorithms.
The certificates are listed on the NIST website at Validated FIPS 140-1 and FIPS 140-2 Cryptographic Modules.
- Distributed relational database architecture
- Open Group Publications: DRDA V5 Vol. 1: Distributed Relational Database Architecture (DRDA), at https://www2.opengroup.org/ogsys/catalog/C112
- Open Group Publications: DRDA V5 Vol. 2: Formatted Data Object Content Architecture (FD:OCA), at https://www2.opengroup.org/ogsys/catalog/C113
- Open Group Publications: DRDA V5 Vol. 3: Distributed Data Management Architecture (DDM), at https://www2.opengroup.org/ogsys/catalog/C114
- X/Open XA
- Object Management Group (OMG) Common Warehouse Metadatamodel (CWM)
- Open Geospatial Consortium (OGC)