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

Summary

OpenSSL vulnerabilities were disclosed by the OpenSSL Project. OpenSSL is used by IBM SDK for Node.js for IBM Cloud. IBM SDK for Node.js for IBM Cloud has addressed the applicable CVEs. Security vulnerabilities have been reported in Node.js that affect IBM® SDK for Node.js™ in IBM Cloud.

Vulnerability Details

CVEID: CVE-2018-0732 DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by the sending of a very large prime value to the client by a malicious server during key agreement in a TLS handshake. By spending an unreasonably long period of time generating a key for this prime, a remote attacker could exploit this vulnerability to cause the client to hang.
CVSS Base Score: 3.7
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/144658&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2018-12115 DESCRIPTION: Node.js is vulnerable to a denial of service, caused by an out-of-bounds write in Buffer. An attacker could exploit this vulnerability to write to memory outside of a Buffer’s memory space, corrupt Buffer objects or cause the process to crash.
CVSS Base Score: 8.2
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/148426&gt; 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:L/A:H)

CVEID: CVE-2018-7166 DESCRIPTION: Node.js could allow a remote attacker to obtain sensitive information, caused by the return of uninitialized memory by the Buffer.alloc() function. By sending a specially crafted argument, an attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base Score: 7.5
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/148425&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID: CVE-2018-0737 DESCRIPTION: OpenSSL could allow a local attacker to obtain sensitive information, caused by a cache-timing side channel attack in the RSA Key generation algorithm. An attacker with access to mount cache timing attacks during the RSA key generation process could exploit this vulnerability to recover the private key and obtain sensitive information.
CVSS Base Score: 3.3
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/141679&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)

CVEID: CVE-2018-7167 DESCRIPTION: Node.js is vulnerable to a denial of service. By invoking Buffer.fill() or Buffer.alloc() , a remote attacker could exploit this vulnerability to cause the application to hang.
CVSS Base Score: 7.5
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/144740&gt; 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)

CVEID: CVE-2018-7164 DESCRIPTION: Node.js is vulnerable to a denial of service, caused by an error when reading from the network into JavaScript using the net.Socket object directly as a stream. By sending tiny chunks of data in short succession, a remote attacker could exploit this vulnerability to cause the application to exhaust all memory resources.
CVSS Base Score: 5.3
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/144739&gt; 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)

CVEID: CVE-2018-7162 DESCRIPTION: Node.js is vulnerable to a denial of service. By sending duplicate/unexpected messages during the handshake, a remote attacker could exploit this vulnerability to cause the node server providing an http server supporting TLS server to crash.
CVSS Base Score: 7.5
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/144738&gt; 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)

CVEID: CVE-2018-1000168 DESCRIPTION: nghttp2 is vulnerable to a denial of service, caused by a NULL pointer dereference. By sending a specially-crafted packet, a remote attacker could exploit this vulnerability to cause the application to crash.
CVSS Base Score: 5.3
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/141584&gt; 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)

CVEID: CVE-2018-7161 DESCRIPTION: Node.js is vulnerable to a denial of service, caused by an error within the http2 implementation. By interacting with the http2 server in an insecure manner, a remote attacker could exploit this vulnerability to cause the node server providing an http2 server to crash.
CVSS Base Score: 7.5
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/144736&gt; 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 v6.14.3 and earlier releases.
These vulnerabilities affect IBM SDK for Node.js v8.11.3 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™ (ibm-node.js-xxx, buildpack-v3.xxx)”,“start_command”:“./vendor/initial_startup.rb”}

If the Node.js engine version is not at least v6.14.4 or v8.11.4 your application may be vulnerable.

Remediation/Fixes

The fixes for these vulnerabilities are included in IBM SDK for Node.js v6.14.4 and subsequent releases.
The fixes for these vulnerabilities are included in IBM SDK for Node.js v8.11.4 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”: “>=6.14.4”
},
_or _
“engines”: {
“node”: “>=8.11.4”
},

You will then need to restage (or re-push) your application using the IBM SDK for Node.js Buildpack v3.22.

Workarounds and Mitigations

none