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HistoryMar 22, 2022 - 4:47 p.m.

Security Bulletin: IBM Db2 Big SQL is vulnerable to arbitrary code execution and denial of service due to Apache Log4j (CVE-2021-45046, CVE-2021-45105)

2022-03-2216:47:00
www.ibm.com
22

10 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.976 High

EPSS

Percentile

100.0%

Summary

Apache Log4j is used by IBM Db2 Big SQL as part of its logging infrastructure. IBM Db2 Big SQL is vulnerable to arbitrary code execution and denial of service due to Apache Log4j (CVE-2021-45046, CVE-2021-45105). The fix includes Apache Log4j 2.17.1

Vulnerability Details

CVEID:CVE-2021-45105
**DESCRIPTION:**Apache Log4j is vulnerable to a denial of service, caused by the failure to protect from uncontrolled recursion from self-referential lookups. A remote attacker with control over Thread Context Map (MDC) input data could craft malicious input data that contains a recursive lookup to cause a StackOverflowError that will terminate the process. Note: The vulnerability is also called LOG4J2-3230.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215647 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2021-45046
**DESCRIPTION:**Apache Log4j could result in remote code execution, caused by an incomplete fix of CVE-2021-44228 in certain non-default configurations. When the logging configuration uses a non-default Pattern Layout with a Context Lookup, an attacker with control over Thread Context Map (MDC) input data can craft malicious input data using a JNDI Lookup pattern to leak sensitive information and remote code execution in some environments and local code execution in all environments.
CVSS Base score: 9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215195 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s) Version(s)
Db2 Big SQL on HDP, CDP 6.0.0.0
Db2 Big SQL on HDP, CDP 7.1.0.0
Db2 Big SQL on Cloud Pak for Data 7.1.1 (on CP4D 3.5.0)
Db2 Big SQL on Cloud Pak for Data 7.2.0 (on CP4D 4.0.0)
Db2 Big SQL on Cloud Pak for Data 7.2.1 (on CP4D 4.0.1)
Db2 Big SQL on Cloud Pak for Data 7.2.2 (on CP4D 4.0.2)
Db2 Big SQL on Cloud Pak for Data 7.2.3 (on CP4D 4.0.3)

HDP is Hortonworks Data Platform

CDP is Cloudera Data Platform Private Cloud

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now by upgrading Affected Product(s) Version(s) Fixes
Db2 Big SQL on Cloud Pak for Data 7.1.1 (on CP4D 3.5.0)

Follow the instructions to apply Db2 Big SQL on CP4D 3.5 Patch 379

Db2 Big SQL on Cloud Pak for Data| 7.2.0 (on CP4D 4.0.0)|

Follow the instructions to upgrade to Db2 Big SQL 7.2.3 on CP4D 4.0.4

Db2 Big SQL on Cloud Pak for Data| 7.2.1 (on CP4D 4.0.1)|

Follow the instructions to upgrade to Db2 Big SQL 7.2.3 on CP4D 4.0.4

Db2 Big SQL on Cloud Pak for Data| 7.2.2 (on CP4D 4.0.2)|

Follow the instructions to upgrade to Db2 Big SQL 7.2.3 on CP4D 4.0.4

Db2 Big SQL on Cloud Pak for Data| 7.2.3 (on CP4D 4.0.3)|

Follow the instructions to upgrade to Db2 Big SQL 7.2.3 on CP4D 4.0.4

Workarounds and Mitigations

IBM strongly suggest addressing the vulnerability now by applying the mitigation below

Product(s)|Version(s)|

Remediation/Fix/Instructions

—|—|—
Db2 Big SQL on HDP, CDP| 6.0.0.0| Follow the instructions to update the vulnerable library
Db2 Big SQL on HDP, CDP| 7.1.0.0| Follow the instructions to update the vulnerable library

HDP is Hortonworks Data Platform

CDP is Cloudera Data Platform Private Cloud

CPENameOperatorVersion
ibm big sqleq6.0
ibm big sqleq7.

10 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.976 High

EPSS

Percentile

100.0%

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