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Security Bulletin: Multiple Vulnerabilities in Node.js affect IBM i

Security Bulletin


Summary

Node.js is supported by IBM i. IBM i has addressed the applicable CVEs.

Vulnerability Details

CVEID: CVE-2018-7158
DESCRIPTION: Node.js path module is vulnerable to a denial of service. By sending a specially crafted file path, an attacker could exploit this vulnerability to cause a regular expression denial of service.
CVSS Base Score: 5.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/143449 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:H)

CVEID: CVE-2018-7159
DESCRIPTION: Node.js http module could allow a remote attacker to bypass security restrictions, caused by the acceptance of incorrect Content-Length values, containing spaces within the value, in HTTP headers. An attacker could exploit this vulnerability to confuse the script and launch further attacks on the system.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/143448 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:N)

CVEID: CVE-2018-7160
DESCRIPTION: Node.js inspector module could allow a remote attacker to bypass security restrictions, caused by the failure to properly validate the Host header. An attacker could exploit this vulnerability to bypass same-origin policy and conduct a DNS rebinding attack.
CVSS Base Score: 5.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/143447 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/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 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-2018-7162
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 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 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-2018-7167
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 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 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)

Affected Products and Versions

Releases 7.1, 7.2 and 7.3 of IBM i are affected.

Remediation/Fixes

The issue can be fixed by applying a PTF to IBM i.

 

Releases 7.1, 7.2 and 7.3 of IBM i are supported and will be fixed. 

http://www-933.ibm.com/support/fixcentral/

The IBM i PTF numbers are:

  Release 7.1, 7.2 & 7.3 (the same number PTF is applicable for all 3 OS releases):

  5733OPS Option 10 (Node.js version 6): SI67795

 

Release 7.2 and 7.3 support Node.js version 8.  Node.js version 8 is available via:

ftp://public.dhe.ibm.com/software/ibmi/products/pase/rpms/repo/ppc64/nodejs8-8.11.3-0.ibmi7.2.ppc64.rpm

 

Important note: IBM recommends that all users running unsupported versions of affected products upgrade to supported and fixed version of affected products.

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

Reference

Complete CVSS v3 Guide
On-line Calculator v3

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

*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.


Cross reference information
Product Component Platform Version Edition
IBM i 7.1 IBM i All Versions
IBM i 7.2 IBM i All Versions
IBM i 7.3 IBM i All Versions

Document information

More support for: IBM i

Software version: 7.1, 7.2, 7.3, All Versions

Operating system(s): IBM i

Reference #: 0715995

Modified date: 29 June 2018