Security Bulletin
Summary
BM PowerVM Novalink is vulnerable because IBM WebSphere Application Server Liberty vulnerable, Eclipse Paho Java client could allow a remote attacker to bypass security restrictions, caused by the failure to check the result when connecting to an MQTT server using TLS and setting a host name verifier. By sending a specially-crafted request, an attacker could exploit this vulnerability to allow one MQTT server to impersonate another and provide the client library with incorrect information.(CVE-2019-11777)
Vulnerability Details
CVEID: CVE-2019-11777
DESCRIPTION: Eclipse Paho Java client could allow a remote attacker to bypass security restrictions, caused by the failure to check the result when connecting to an MQTT server using TLS and setting a host name verifier. By sending a specially-crafted request, an attacker could exploit this vulnerability to allow one MQTT server to impersonate another and provide the client library with incorrect information.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/167068 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
Affected Products and Versions
Affected Product(s) | Version(s) |
| PowerVM Novalink | 2.0 |
| PowerVM Novalink | 2.0.1 |
| PowerVM Novalink | 2.0.2 |
| PowerVM Novalink | 2.0.2.1 |
| PowerVM Novalink | 2.0.3 |
| PowerVM Novalink | 2.0.3.1 |
Remediation/Fixes
IBM strongly recommends addressing the vulnerability now by upgrading based on the table below.
| Product | Version | Remediation |
| PowerVM Novalink | 2.0.0.0 |
Update to pvm-novalink 2.0.1-220908 or |
| PowerVM Novalink | 2.0.1 |
Update to pvm-novalink 2.0.1-220908 or |
| PowerVM Novalink | 2.0.2 | Update to pvm-novalink_2.0.3.1.1-220923 |
| PowerVM Novalink | 2.0.2.1 | Update to pvm-novalink_2.0.3.1.1-220923 |
| PowerVM Novalink | 2.0.3 | Update to pvm-novalink_2.0.3.1.1-220923 |
| PowerVM Novalink | 2.0.3.1 | Update to pvm-novalink_2.0.3.1.1-220923 |
Workarounds and Mitigations
None
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References
Change History
23 Sep 2022: Initial Publication
*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
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
27 September 2022
Initial Publish date:
23 September 2022
UID
ibm16824137