IBM Support

Security Bulletin: Personal Communications WorkStation file Buffer Overflow Vulnerability (CVE-2012-0201)

Security Bulletin


A buffer overflow vulnerability in the handling of WorkStation files (.ws) by IBM Personal Communications could allow a remote attacker to cause a denial of service (application crash) or potentially execute arbitrary code on vulnerable installations of IBM Personal Communications.

Vulnerability Details

Subscribe to My Notifications to be notified of important product support alerts like this.
  • Follow this link for more information (requires login with your IBM ID)

CVE ID: CVE-2012-0201

Description: IBM Personal Communications is susceptible to a buffer overflow vulnerability when handling certain specially-crafted WorkStation files (.ws). If an attacker could persuade a potential victim running a vulnerable installation of the application to open a malicious .ws file, the attacker could potentially crash the application or execute arbitrary code on the client system.

CVSS Base Score: 9.3
CVSS Temporal Score: See for the current score
CVSS Environmental Score*: Undefined
CVSS String: (AV:N/AC:M/Au:N/C:C/I:C/A:C)

Affected Products and Versions

IBM Personal Communications 5.9.0 to 5.9.7 and 6.0.0 to 6.0.3 on all supported platforms.


Upgrade to Personal Communications 6.0.4 or later.
Apply the fix associated with APAR IC81539.

Workarounds and Mitigations

The Personal Communications workstation profiles should NOT be modified by users; however, if for any reason they do need to be modified, then it should only be done by an administrator.

Get Notified about Future Security Bulletins





Change History

* 28 February 2012 - Original copy published

*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. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

Internal Use Only

Removed this Acknowledgement as the link is broken.

The vulnerability was reported to IBM by Rocco Calvi of">stratsec.

[{"Product":{"code":"SSEQ5Y","label":"Personal Communications"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":"General Information","Platform":[{"code":"PF033","label":"Windows"}],"Version":"5.9;6.0","Edition":"","Line of Business":{"code":"LOB35","label":"Mainframe SW"}}]

Document Information

Modified date:
10 October 2018