Security Bulletin: Vulnerabilities in Apache Log4j affect IBM Spectrum Protect Snapshot for VMware (CVE-2021-45105 and CVE-2021-45046)

Summary

Vulnerabilities in Apache Log4j could result in a denial of service or remote code execution. These vulnerabilities may affect IBM Spectrum Protect Snapshot for VMware due to its use of Log4j for logging of messages and traces. The below fix package includes 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

Remediation/Fixes

IBM strongly recommends addressing this vulnerability now by upgrading.

Note: The below fix package includes Log4j 2.17.

_IBM Spectrum Protect Snapshot for VMware Affected Versions
_|Fixing
Level|Platform|_Link to Fix and Instructions
_
—|—|—|—
4.1.6.10-4.1.6.13| 4.1.6.14| Linux| <https://www.ibm.com/support/pages/node/6537580&gt;

Workarounds and Mitigations

None