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Security Bulletin: IBM Streams is affected by Libxml2 vulnerabilities (CVE-2016-4447, CVE-2016-4448, CVE-2016-4449)

Security Bulletin


Summary

A set of Libxml2 vulnerabilities were disclosed by the Libxml2 Project. Libxml2 is used by IBM Streams. IBM Streams has addressed the applicable CVEs.

Vulnerability Details

CVEID: CVE-2016-4447
DESCRIPTION:
 libxml2 is vulnerable to a denial of service, caused by a heap-based buffer overflow. By persuading a victim to open a specially crafted XML file, a remote attacker could overflow a buffer and cause the application to crash.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113522 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)

CVEID: CVE-2016-4448
DESCRIPTION:
 libxml2 could allow a remote attacker to execute arbitrary code on the system, caused by a format string error. By using a specially crafted html file containing malicious format specifiers, a remote attacker could exploit this vulnerability to execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113523 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-4449
DESCRIPTION:
 libxml2 could allow a remote attacker to obtain sensitive information, caused by a XML external entity (XXE) error when processing XML data by the XML parser. A remote attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113524 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

Affected Products and Versions

  • IBM Streams Version 4.1.1.1 and earlier
  • IBM InfoSphere Streams Version 4.0.1.2 and earlier
  • IBM InfoSphere Streams Version 3.2.1.5 and earlier
  • IBM InfoSphere Streams Version 3.1.0.7 and earlier
  • IBM InfoSphere Streams Version 3.0.0.5 and earlier
  • IBM InfoSphere Streams Version 2.0.0.4 and earlier
  • IBM InfoSphere Streams Version 1.2.1.0

Remediation/Fixes

NOTE: Fix Packs are available on IBM Fix Central.

  • Version 4.1.1:
  • Version 4.0.1:
  • Version 3.2.1:
  • Version 3.1.0:
    • Contact IBM Technical Support.
  • Version 3.0.0:
    • Contact IBM Technical Support.
  • Versions 1.2 and 2.0:
    • For version 1.x and 2.x, IBM recommends upgrading to a fixed, supported version/release/platform of the product. Customers who cannot upgrade and need to secure their installation should open a PMR with IBM Technical Support and request assistance securing their InfoSphere Streams system against the vulnerabilities identified in this Security Bulletin.

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

Related information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

22 September 2016: Original version created
05 December 2016: Added links to fix packs

*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.

Disclaimer

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.

Cross reference information
Segment Product Component Platform Version Edition
Information Management IBM Streams Linux 1.2, 2.0, 3.0, 3.1, 3.2, 3.2.1, 4.0, 4.0.1, 4.1, 4.1.1 All Editions

Document information

More support for: IBM Streams

Software version: 1.2, 2.0, 3.0, 3.1, 3.2, 3.2.1, 4.0, 4.0.1, 4.1, 4.1.1

Operating system(s): Linux

Software edition: All Editions

Reference #: 1991061

Modified date: 06 December 2016