There are multiple vulnerabilities in the Apache Commons Compress library that is used by WebSphere Application Server Liberty. This has been addressed.
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)
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
|WebSphere Application Server Liberty||188.8.131.52 - 184.108.40.206|
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 220.127.116.11 - 18.104.22.168:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH39418
· Apply Liberty Fix Pack 22.214.171.124 or later (targeted availability 4Q2021).
Additional interim fixes may be available and linked off the interim fix download page.
Workarounds and Mitigations
Get Notified about Future Security Bulletins
15 Sep 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.
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.
15 September 2021