Security Bulletin: Multiple Vulnerabilities in Apache Commons Compress affect WebSphere Application Server Liberty (CVE-2021-33517, CVE-2021-36090)

Summary

There are multiple vulnerabilities in the Apache Commons Compress library that is used by WebSphere Application Server Liberty. This has been addressed.

Vulnerability Details

CVEID:CVE-2021-35517
**DESCRIPTION:**Apache Commons Compress is vulnerable to a denial of service, caused by an out of memory error when allocating large amounts of memory. By persuading a victim to open a specially-crafted TAR archive, a remote attacker could exploit this vulnerability to cause a denial of service condition against services that use Compress’ tar package.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/205307 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)

CVEID:CVE-2021-36090
**DESCRIPTION:**Apache Commons Compress is vulnerable to a denial of service, caused by an out-of-memory error when large amounts of memory are allocated. By reading a specially-crafted ZIP archive, a remote attacker could exploit this vulnerability to cause a denial of service condition against services that use Compress’ zip package.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/205310 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)

Affected Products and Versions

Remediation/Fixes

The recommended solution is to apply the interim fix or Fix Pack containing APAR PH39418 for each named product as soon as practical.

For WebSphere Application Server Liberty 17.0.0.3 - 21.0.0.9:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH39418
--OR–
· Apply Liberty Fix Pack 21.0.0.10 or later (targeted availability 4Q2021).

Additional interim fixes may be available and linked off the interim fix download page.

Workarounds and Mitigations

None