IBM Support

Security Bulletin: Vulnerability in Python affects IBM Analytics Engine (CVE-2018-14647)

Created by Sapna Ramesh on
Published URL:
https://www.ibm.com/support/pages/node/886261
886261

Security Bulletin


Summary

Python is vulnerable to a denial of service, caused by a flaw in the elementtree C accelerator. By using a specially-crafted XML document, a remote attacker could exploit this vulnerability to cause a resource exhaustion. 

Vulnerability Details

DESCRIPTION: Python’s elementtree C accelerator failed to initialise Expat’s hash salt during initialization. This could make it easy to conduct denial of service attacks against Expat by constructing an XML document that would cause pathological hash collisions in Expat’s internal data structures, consuming large amounts CPU and RAM. 
CVSS Base Score: 5.3
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/150579 for more information
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 Analytics Engine 1.1
  • IBM Analytics Engine 1.0

Remediation/Fixes

  • IBM Analytics Engine 1.2  is not affected by this vulnerability.
  • IBM Analytics Engine 1.0 is deprecated and no new provisioning is allowed as of May 15 2019. Users on IBM Analytics Engine 1.0 clusters must upgrade to IBM Analytics Engine 1.2 and move their applications to Python 3.
  • IBM Analytics Engine 1.1 will be deprecated and no new provisioning will be allowed as of August 30 2019. Users on IBM Analytics Engine 1.1 clusters must upgrade to IBM Analytics Engine 1.2 and and move their applications to Python 3.

Workarounds and Mitigations

None.

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

03 June 2019: 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.

Document Location

Worldwide

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SS83E9","label":"IBM Analytics Engine"},"Component":"IBM Analytics Engine","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"All Versions","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
03 June 2019

UID

ibm10886261

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