IBM Support

Security Bulletin: Security vulnerability affects Rational Engineering Lifecycle Manager

Security Bulletin


Rational Engineering Lifecycle Manager is affected by a potential security vulnerability

Vulnerability Details

CVEID: CVE-2018-1846
DESCRIPTION: IBM RELM is vulnerable to a XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources.
CVSS Base Score: 7.1
CVSS Temporal Score: See for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L)

Affected Products and Versions

Rational Engineering Lifecycle Manager 5.0 - 5.0.2
Rational Engineering Lifecycle Manager 6.0 - 6.0.6


For 6.0 - 6.0.4 releases, upgrade to one of the following versions:

  • Upgrade to version 6.0.6 ifix03 or later:
      1. Get the CLM 6.0.6 ifix03 or later from: CLM 6.0.6 iFix03
      2. Start the package installation and select RELM when asked about the products to be updated.
  • or Upgrade to 6.0.2 ifix19 or later:
      1. Get the CLM 6.0.2 ifix19 or later from: CLM 6.0.2 iFix19 (Planned publication within 30 days)
      2. Start the package installation and select RELM when asked about the products to be updated.

For the 5.x releases, and any prior versions of the products listed above, IBM recommends upgrading to a fixed, supported version/release/platform of the product.

If the iFix is not found in the Fix Portal please contact IBM Support.

Workarounds and Mitigations


Get Notified about Future Security Bulletins

Important Note

IBM strongly suggests that all System z customers be subscribed to the System z Security Portal to receive the latest critical System z security and integrity service. If you are not subscribed, see the instructions on the System z Security web site. Security and integrity APARs and associated fixes will be posted to this portal. IBM suggests reviewing the CVSS scores and applying all security or integrity fixes as soon as possible to minimize any potential risk.



Change History

31 October 2018: initial 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.


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.

Internal Use Only

PSIRT Adv 12904

[{"Business Unit":{"code":"BU055","label":"Cognitive Applications"},"Product":{"code":"SSUB2H","label":"IBM Engineering Lifecycle Optimization - Engineering Insights"},"Component":"","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.0.x, 6.0, 6.0.1, 6.0.2, 6.0.3, 6.0.4, 6.0.5, 6.0.6","Edition":"","Line of Business":{"code":"LOB02","label":"AI Applications"}}]

Product Synonym

Rational Engineering Lifecycle Manager

Document Information

Modified date:
31 October 2018