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)

Summary

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.

Vulnerability Details

CVEID: CVE-2016-4463**
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&gt; 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

Remediation/Fixes

The table below provides links to patches for all affected versions. Follow the installation instructions in the README file included with the patch.

Workarounds and Mitigations

None.