Security Bulletin: Security vulnerabilities have been identified in GSKIT and/or GSKit Crypto and Fork that are integrated with IBM DB2 and shipped with IBM InfoSphere BigInsights. (CVE-2015-7420, CVE-2015-7421, CVE-2016-0201)

Security Bulletin

Summary

Security vulnerabilities have been identified in GSKIT and/or GSKit Crypto and Fork that are integrated with IBM DB2 and shipped with IBM InfoSphere BigInsights. Information about security vulnerabilities affecting GSKIT/ Crypto and Fork has been published in a security bulletin.

Vulnerability Details

CVEID: CVE-2015-7420
DESCRIPTION: A vulnerability in GSKit could allow a remote attacker to obtain sensitive information. The GSKit PRNG state is duplicated during a fork() system call operation which results in a period of time where child processes may generate identical PRNG output to the parent.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/107694 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID: CVE-2015-7421
DESCRIPTION: A vulnerability in GSKit could allow a remote attacker to obtain sensitive information. The internal ICC PRNG pool state is duplicated during a fork() system call operation which results in a period of time where child processes may generate identical PRNG output to the parent. This may allow possible attacks related to predictable state which an attacker could exploit.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/107695 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID: CVE-2016-0201
DESCRIPTION: IBM GSKit could allow a remote attacker to obtain sensitive information, caused by a MD5 collision. An attacker could exploit this vulnerability to obtain authentication credentials.
CVSS Base Score: 5.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109310 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

Affected Products and Versions

BigInsights Version	Fix Central Link	Readme
4.x	Fix Central Link Interim Fix: IM-BigInsights-BigSQL-linuxamd64_CVE-2016-0201	BigInsights_Applying Big SQL fix for CVE-2015-7420_CVE-2015-7421_CVE-2016-0201.docx

Remediation/Fixes

Apply the interim fix from Fix Central by following instructions in Readme.

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References

Complete CVSS v2 Guide
On-line Calculator v2

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Change History

2 May 2016: 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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Tips

Security Bulletin: Security vulnerabilities have been identified in GSKIT and/or GSKit Crypto and Fork that are integrated with IBM DB2 and shipped with IBM InfoSphere BigInsights. (CVE-2015-7420, CVE-2015-7421, CVE-2016-0201)