CVE-2019-4656
First published: Wed Mar 11 2020(Updated: )
IBM MQ and IBM MQ Appliance 7.1, 7.5, 8.0, 9.0 LTS, 9.1 LTS, and 9.1 CD is vulnerable to a denial of service attack that would allow an authenticated user to crash the queue and require a restart due to an error processing error messages. IBM X-Force ID: 170967.
Credit: psirt@us.ibm.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| IBM MQ | >=8.0.0.0<8.0.0.14 | |
| IBM MQ | >=9.0.0.0<=9.0.0.9 | |
| IBM MQ | >=9.1.0<9.1.4 | |
| IBM MQ | >=9.1.0.0<9.1.0.4 | |
| IBM MQ Appliance | >=8.0.0.0<8.0.0.14 | |
| IBM WebSphere MQ | >=7.1.0.0<=7.5.0.9 | |
| HP HP-UX | ||
| IBM AIX | ||
| Linux Linux kernel | ||
| Microsoft Windows | ||
| Oracle Solaris | ||
| <=7.1 | ||
| <=7.5 | ||
| <=8.0 | ||
| <=9.0 LTS | ||
| <=9.1 LTS | ||
| <=9.1 CD |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2019-4656?
The severity of CVE-2019-4656 is medium with a CVSS score of 6.5.
Which IBM products are affected by CVE-2019-4656?
IBM MQ and IBM MQ Appliance versions 7.1, 7.5, 8.0, 9.0 LTS, 9.1 LTS, and 9.1 CD are affected by CVE-2019-4656.
What type of vulnerability is CVE-2019-4656?
CVE-2019-4656 is a denial of service vulnerability.
How can an attacker exploit CVE-2019-4656?
An authenticated user can exploit CVE-2019-4656 by crafting a malicious message, causing a queue manager to incorrectly mark a queue as damaged.
Is CVE-2019-4656 affecting non-IBM software?
No, CVE-2019-4656 does not affect HP-UX, IBM AIX, Linux kernel, Microsoft Windows, or Oracle Solaris.
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