Security Bulletin: IBM Cloud Private is vulnerable to OpenSSL and Node.js vulnerabilities (CVE-2021-23840, CVE-2021-22884, CVE-2021-22883)

Summary

IBM Cloud Private is vulnerable to OpenSSL and Node.js vulnerabilities

Vulnerability Details

CVEID:CVE-2021-23840
**DESCRIPTION:**OpenSSL is vulnerable to a denial of service, caused by an integer overflow in CipherUpdate. By sending an overly long argument, an attacker could exploit this vulnerability to cause the application to crash.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/196848 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2021-22884
**DESCRIPTION:**Node.js is vulnerable to a denial of service, caused by an error when the allowlist includes “localhost6”. By controlling the victim’s DNS server or spoofing its responses, an attacker could exploit this vulnerability to bypass the DNS rebinding protection mechanism using the “localhost6” domain and cause a denial of service.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/197191 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H)

CVEID:CVE-2021-22883
**DESCRIPTION:**Node.js is vulnerable to a denial of service, caused by a file descriptor leak. By making multiple attempts to connect with an ‘unknownProtocol’, an attacker could exploit this vulnerability to lead to an excessive memory usage and cause the system to run out of memory.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/197190 for the current score.
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

Remediation/Fixes

Product defect fixes and security updates are only available for the two most recent Continuous Delivery (CD) update packages

• IBM Cloud Private 3.2.1
• IBM Cloud Private 3.2.2

For IBM Cloud Private 3.2.1, apply fix pack:

• IBM Cloud Private 3.2.1.2105

For IBM Cloud Private 3.2.2, apply fix pack:

• IBM Cloud Private 3.2.2.2105

For IBM Cloud Private 3.1.0, 3.1.1, 3.1.2, 3.2.0:

• Upgrade to the latest Continuous Delivery (CD) update package, IBM Cloud Private 3.2.2.
• If required, individual product fixes can be made available between CD update packages for resolution of problems. Contact IBM support for assistance

Workarounds and Mitigations

None