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TIPS

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   further.
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   your result.
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 * Did you search for an IBM acquired or sold product ? If so, follow the
   appropriate link below to find the content you need.

Our apologies

Search results are not available at this time. Please try again later or use one
of the other support options on this page.







SECURITY BULLETIN: VULNERABILITY IN APACHE LOG4J AFFECTS SOME FEATURES OF IBM®
DB2® (CVE-2021-44228)


SECURITY BULLETIN





SUMMARY

Apache Log4j open source library used by IBM® Db2® is affected by a
vulnerability that could allow a remote attacker to execute arbitrary code on
the system. This library is used by the Db2 Federation feature. The fix for the
vulnerability is to update the log4j library. Please see CVE-2021-4104 for
bulletin relating to Log4j V1. Please see CVE-2021-44832, CVE-2021-45046 and
CVE-2021-45105 for bulletins relating to Log4j V2. Updating log4j to a version
2.15.0 or higher also addresses CVE-2021-4104.


VULNERABILITY DETAILS

CVEID:   CVE-2021-44228
DESCRIPTION:   Apache Log4j could allow a remote attacker to execute arbitrary
code on the system, caused by the failure to protect against attacker controlled
LDAP and other JNDI related endpoints by JNDI features. By sending a specially
crafted code string, an attacker could exploit this vulnerability to load
arbitrary Java code on the server and take complete control of the system. Note:
The vulnerability is also called Log4Shell or LogJam.
CVSS Base score: 10
CVSS Temporal Score: See:
https://exchange.xforce.ibmcloud.com/vulnerabilities/214921 for the current
score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)


AFFECTED PRODUCTS AND VERSIONS



Fix pack levels of IBM Db2 V11.5 for all editions on all platforms are affected
only if the following features are configured:


Federation:  


 *   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.


REMEDIATION/FIXES



Customers running any vulnerable fixpack level of an affected Program, V11.5,
can download the special build containing the interim fix for this issue from
Fix Central. These special builds are available based on the most recent fixpack
level for the V11.5.6 and V11.5.7 release. They can be applied to any affected
fixpack level of the appropriate release to remediate this vulnerability.

 

ReleaseFixed in fix packAPARDownload URLV11.5TBD

IT39389

Special Build for V11.5.6:

AIX 64-bit
Linux 32-bit, x86-32
Linux 64-bit, x86-64
Linux 64-bit, POWER™ little endian
Linux 64-bit, System z®, System z9® or zSeries®
Windows 32-bit, x86
Windows 64-bit, x86

 

 

V11.5TBD

IT39389

Special Build for V11.5.7:

AIX 64-bit
Linux 32-bit, x86-32
Linux 64-bit, x86-64
Linux 64-bit, POWER™ little endian
Linux 64-bit, System z®, System z9® or zSeries®
Windows 32-bit, x86
Windows 64-bit, x86

 

 

 


WORKAROUNDS AND MITIGATIONS



A user with SYSADM authority should preform the following:

    db2stop

    db2set DB2_JVM_STARTARGS="-Dlog4j2.formatMsgNoLookups=true"

    db2start

 

 


GET NOTIFIED ABOUT FUTURE SECURITY BULLETINS

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like this.


REFERENCES

Complete CVSS v3 Guide
On-line Calculator v3

Off



RELATED INFORMATION

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

See Security Bulletin:  Vulnerability in Apache Log4j affects some features of
IBM® Db2®   (CVE-2021-4104)

See Security Bulletin:  A vulnerability in Apache Log4j affects some features of
IBM® Db2®  (CVE-2021-44832)

See Security Bulletin:  Multiple vulnerabilities in Apache Log4j affects some
features of IBM® Db2®   (CVE-2021-45046, CVE-2021-45105)

 


ACKNOWLEDGEMENT






CHANGE HISTORY

06 June 2022:  Updated related links for other Log4j bulletins.
21 Dec 2021: Links for 11.5.7 Windows 32-bit and Windows 64-bit have been added
20 Dec 2021: Links for 11.5.6 Windows 32-bit and Windows 64-bit have been added
16 Dec 2021: Updated to reflect that all Db2 editions are impacted.  Added
instructions to determine if Federation is enabled.
16 Dec 2021: Added fix pack links for 11.5.7 special builds on AIX 64-bit, Linux
64-bit, Linux 64-bit POWER™ little endian
15 Dec 2021:  Added fix pack links for 11.5.6 special builds on AIX 64-bit,
Linux 32-bit, Linux 64-bit, Linux 64-bit POWER™ little endian, Linux 64-bit
System z®, System z9® or zSeries®
                           Added fix pack links for 11.5.7 special builds on
Linux 32-bit, Linux 64-bit System z®, System z9® or zSeries®
14 Dec 2021: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately
impact the Overall CVSS Score. Customers can evaluate the impact of this
vulnerability in their environments by accessing the links in the Reference
section of this Security Bulletin.


DISCLAIMER

According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY
ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to
address potential vulnerabilities, IBM periodically updates the record of
components contained in our product offerings. As part of that effort, if IBM
identifies previously unidentified packages in a product/service inventory, we
address relevant vulnerabilities regardless of CVE date. Inclusion of an older
CVEID does not demonstrate that the referenced product has been used by IBM
since that date, nor that IBM was aware of a vulnerability as of that date. We
are making clients aware of relevant vulnerabilities as we become aware of them.
"Affected Products and Versions" referenced in IBM Security Bulletins are
intended to be only products and versions that are supported by IBM and have not
passed their end-of-support or warranty date. Thus, failure to reference
unsupported or extended-support products and versions in this Security Bulletin
does not constitute a determination by IBM that they are unaffected by the
vulnerability. Reference to one or more unsupported versions in this Security
Bulletin shall not create an obligation for IBM to provide fixes for any
unsupported or extended-support products or versions.


DOCUMENT LOCATION

Worldwide



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DOCUMENT INFORMATION

More support for:
DB2 for Linux- UNIX and Windows

Software version:
11.5

Operating system(s):
AIX, Linux, Windows

Document number:
6526462

Modified date:
06 June 2022


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