Dec 21, 2021 7:01 pm EST
Categorized: Critical Severity
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Apache Log4j open source library used by IBM® Db2® is affected by multiple vulnerabilities that could allow a remote attacker to execute arbitrary code on the system or cause a denial of service. This library is used by the Db2 Federation feature. The fix for the vulnerability is to update the Apache Log4j library to 2.17.0
CVE(s): CVE-2021-45105, CVE-2021-45046
Affected product(s) and affected version(s):
Fix pack levels of IBM Db2 V11.5 for all editions on all platforms are affected only if the following features are configured:
- DVM JDBC wrapper driver,
- NoSQL wrapper driver (for Hadoop),
- Blockchain wrapper driver (for Hyperledger Fabric, Linux 64-bit, x86-64 only)
IBM Db2 V9.7, V10.1, V10.5 and V11.1 are not affected.
To determine if Federation is enabled, issue the following:
db2 get dbm cfg | grep FEDERATED
If a value of NO is returned, you are not vulnerable.
You can determine if you are using one of the affected wrappers by performing:
To determine if the DVM JDBC wrapper is in use, issue the following statement:
db2 "select servername from syscat.serveroptions where option = 'DRIVER_CLASS' and setting = 'com.rs.jdbc.dv.DvDriver'"
If a servername is returned, then you are using the DVM JDBC wrapper via the DvDriver class.
To determine if the NoSQL hadoop wrapper is in use, issue the following statement:
db2 "select * from syscat.servers where servertype = 'HDFSPARQUET'"
If 1 or more rows are returned, then NoSQL hadoop wrapper is in use.
To determine if the NoSQL Blockchain wrapper is in use, issue the following statement:
db2 "select * from syscat.serveroptions where option='PEER_URL'"
If 1 or more rows are returned, then NoSQL Blockchain wrapper is in use.
Refer to the following reference URLs for remediation and additional vulnerability details:
Source Bulletin: https://www.ibm.com/support/pages/node/6528672
X-Force Database: https://exchange.xforce.ibmcloud.com/vulnerabilities/215647
X-Force Database: https://exchange.xforce.ibmcloud.com/vulnerabilities/215195