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Security Bulletin: Multiple vulnerabilities may affect IBM® SDK for Node.js™ in IBM Bluemix

Security Bulletin


Summary

Vulnerabilities in Node.js and the c-ares library were disclosed on July 11 2017 by the Node.js Foundation. IBM SDK for Node.js has addressed the applicable CVEs.

Vulnerability Details

CVEID: CVE-2017-1000381
DESCRIPTION:
c-ares could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds read in the ares_parse_naptr_reply() function when parsing NAPTR responses. By sending specially crafted DNS response packet, an attacker could exploit this vulnerability to read memory outside of the given input buffer and cause a denial of service.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/128625 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:N/A:L)

CVEID: CVE-2017-11499
DESCRIPTION:
Node.js is vulnerable to a denial of service, caused by a flaw related to constant HashTable seeds. A remote attacker could exploit this vulnerability to flood the hash and cause a denial of service.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/129465 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:H)

Affected Products and Versions

These vulnerabilities affect IBM SDK for Node.js v4.8.3 and earlier releases.
These vulnerabilities affect IBM SDK for Node.js v6.11.0.0 and earlier releases.
These vulnerabilities affect IBM SDK for Node.js v8.1.2.0 and earlier releases.

You can also find this file through the command-line Cloud Foundry client by running the following command:

cf ssh <appname> -c cat staging_info.yml

Look for the following lines:
{"detected_buildpack":"SDK for Node.js(TM) (ibm-node.js-xxx, buildpack-v3.xxx)","start_command":"./vendor/initial_startup.rb"}

If the Node.js engine version is not at least v4.8.4 or v6.11.1 or v8.1.4.0 your application may be vulnerable.

Remediation/Fixes

The fixes for these vulnerabilities are included in IBM SDK for Node.js v4.8.4.0 and subsequent releases.
The fixes for these vulnerabilities are included in IBM SDK for Node.js v6.11.1.0 and subsequent releases.
The fixes for these vulnerabilities are included in IBM SDK for Node.js v8.1.4.0 and subsequent releases.

To upgrade to the latest version of the Node.js runtime, please specify the latest Node.js runtime in your package.json file for your application:

"engines": {
"node": ">=4.8.4"
},
or
"engines": {
"node": ">=6.11.1"
},
or
"engines": {
"node": ">=8.1.4"
},

You will then need to restage (or re-push) your application using the IBM SDK for Node.js Buildpack v3.13.

Workarounds and Mitigations

None

Monitor IBM Cloud Status for Future Security Bulletins

Monitor the security notifications on the IBM Cloud Status page to be advised of future security bulletins.

Reference

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

August 11 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

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.

Document information

More support for: IBM SDK for Node.js for Bluemix

Component: --

Software version: Version Independent

Operating system(s): Platform Independent

Reference #: 2006722

Modified date: 09 August 2018