Security Bulletin: An XML parser vulnerability affects IBM Tivoli Access Manager for e-business and IBM Security Access Manager for Web 7.0 software releases (CVE-2016-4463)
Apache Xerces-C XML Parser library is vulnerable to a denial of service, caused by a stack-based buffer overflow when parsing a deeply nested DTD. A remote attacker could exploit this vulnerability to cause a denial of service.
IBM Tivoli Access Manager for e-business and IBM Security Access Manager for Web 7.0 software releases use the Apache Xerces-C XML parser and are affected by this vulnerability.
DESCRIPTION: Apache Xerces-C XML Parser library is vulnerable to a denial of service, caused by a stack-based buffer overflow when parsing a deeply nested DTD. A remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/114596 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
Affected Products and Versions
IBM Tivoli Access Manager for e-business, version 6.0
IBM Tivoli Access Manager for e-business, version 6.1
IBM Tivoli Access Manager for e-business, version 6.1.1
IBM Security Access Manager for Web, version 7.0 software
The table below provides links to patches for all affected versions. Follow the installation instructions in the README file included with the patch.
|IBM Tivoli Access Manager for e-business||6.0||IV93207||Apply Interim Fix 47:
|IBM Tivoli Access Manager for e-business||6.1||IV93207||Apply Interim Fix 29:
|IBM Tivoli Access Manager for e-business||6.1.1||IV93207||Apply Interim Fix 29:
|IBM Security Access Manager for Web||7.0 (software)||IV93297||Apply Interim Fix 29:
Workarounds and Mitigations
Get Notified about Future Security Bulletins
On-line Calculator v3
IBM Product Security Incident Response Blog
February 21, 2017: Original version 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.
More support for:
IBM Security Access Manager for Web
Software version: 6.0, 6.1, 6.1.1, 7.0
Operating system(s): Platform Independent
Reference #: 1996869
Modified date: 24 February 2017