Security Bulletin: Vulnerabilities in Apache Log4j affect IBM Spectrum Protect for Space Management (CVE-2021-45105, CVE-2021-45046)

Summary

Vulnerabilities in Apache Log4j could result in a denial of service or remote code execution. IBM Spectrum Protect for Space Management includes the IBM Spectrum Protect Backup-Archive Client which installs the vulnerable Log4j files. The below fix packages include Apache Log4j 2.17.

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

Note: IBM Spectrum Protect for Space Management packages the IBM Spectrum Protect Backup-Archive client which installs the affected Log4j files. However, based on current information and analysis these files are not used.

Remediation/Fixes

IBM strongly recommends addressing this vulnerability now by upgrading.

Note: The below fix packages include Log4j 2.17.

_IBM Spectrum Protect for
Space Management Affected Versions
_|Fixing
Level|Platform|_Link to Fix and Instructions
_
—|—|—|—
8.1.11.0-8.1.13.1
| 8.1.13.2| AIX
Linux| <https://www.ibm.com/support/pages/node/316077&gt;
7.1.8.10-7.1.8.13| 7.1.8.14| Linux| <https://www.ibm.com/support/pages/node/316075&gt;

Workarounds and Mitigations

None