IBM Support

Security Bulletin: Vulnerability in dependent component shipped in IBM Development Package for Apache Spark (CVE-2016-4970)

Created by Stephen Hellberg on
Published URL:
https://www.ibm.com/support/pages/node/292543
292543

Security Bulletin


Summary

The developerWorks download for IBM Development Package for Apache Spark is not vulnerable in its default configuration.

However, IBM Development Package for Apache Spark could be vulnerable to a Denial of Service attack if the 'netty-tcnative' component is added and configured onto the classpath during application development/deployment, because it provides the interface between Netty and an installed openSSL library.

Vulnerability Details

CVEID: CVE-2016-4970
DESCRIPTION: Netty is vulnerable to a denial of service, caused by the improper handling of renegotiation by the OpenSslEngine. If renegotiation is enabled, a remote attacker could exploit this vulnerability to cause the application to enter into an infinite loop.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/122029 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

All IBM Development Package for Apache Spark, v1 releases
All IBM Development Package for Apache Spark, v2.0.0 releases

Remediation/Fixes

IBM Development Package for Apache Spark, v2.1.0.0, or later releases.

An unaffected release is available for download from developerWorks.

Workarounds and Mitigations

Use of the java command-line option "-Djdk.tls.rejectClientInitiatedRenegotiation=true" disabling renegotiation can avoid this issue.

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References

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

http://netty.io/news/2016/06/07/4-0-37-Final.html

Change History

28 February 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.

Disclaimer

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

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Document Information

Modified date:
15 June 2018

UID

swg21999185

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