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Security Bulletin: Denial of service vulnerability in WebSphere Application Server Liberty (CVE-2019-12402)

Security Bulletin


There is a denial of service vulnerability in WebSphere Application Server Liberty. This vulnerability has been addressed.

Vulnerability Details

CVEID: CVE-2019-12402
DESCRIPTION: Apache Commons Compress is vulnerable to a denial of service, caused by an error in the internal file name encoding algorithm. By persuading a victim to open specially crafted ZIP archive containing malicious input, a remote attacker could exploit this vulnerability to cause the application to enter into an infinite loop.
CVSS Base Score: 4.3
CVSS Temporal Score: See for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

Affected Products and Versions

These vulnerabilities affect the following versions and releases of IBM WebSphere Application Server:

  • Liberty


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

For WebSphere Application Server Liberty using collectiveMember-1.0 or collectiveController-1.0 feature:

· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH17088
· Apply Fix Pack or later.

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Change History

29 October 2019:original document published
20 November 2019: added interim fix

*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.


Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location


[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Component":"Liberty","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"},{"code":"PF012","label":"IBM i"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"},{"code":"PF035","label":"z\/OS"}],"Version":"All Versions","Edition":"Liberty","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
20 November 2019