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CVE-2019-4656

MEDIUM
6.5
CVSS Score
Published: March 16, 2020 at 03:25 PM UTC
Updated: June 17, 2026 at 02:36 AM UTC
4 products affected across 1 vendorMQWebSphere MQMQ Appliance· also runs on 4 platforms

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Severity
MEDIUM6.5
Exploit prediction
EPSS 1%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

MQ· IBM
95%
8.0.0.0 ≤ v < 8.0.0.149.0.0.0 ≤ v ≤ 9.0.0.99.1.0 ≤ v < 9.1.49.1.0.0 ≤ v < 9.1.0.47.1.0.07.1.0.17.1.0.27.1.0.37.1.0.47.1.0.57.1.0.67.1.0.77.1.0.87.1.0.97.5.0.07.5.0.17.5.0.27.5.0.37.5.0.47.5.0.57.5.0.67.5.0.77.5.0.87.5.0.98.0.0.08.0.0.18.0.0.108.0.0.118.0.0.128.0.0.138.0.0.28.0.0.38.0.0.48.0.0.58.0.0.68.0.0.78.0.0.88.0.0.99.0.0.09.0.0.19.0.0.29.0.0.39.0.0.49.0.0.59.0.0.69.0.0.79.0.0.89.19.1.0.19.1.0.29.1.0.39.1.19.1.29.1.3
Affected range stops below 8.0.0.14, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.1.0.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.1.4, so it looks safe — our inference, not a vendor statement
hp-hp-ux (environment) · ibm-aix (environment) · linux-linux-kernel (environment) · microsoft-windows (environment) · oracle-solaris (environment)
MQ Appliance· IBM
95%
8.0.0.0 ≤ v < 8.0.0.14
Affected range stops below 8.0.0.14, so it looks safe — our inference, not a vendor statement
hp-hp-ux (environment) · ibm-aix (environment) · linux-linux-kernel (environment) · microsoft-windows (environment) · oracle-solaris (environment)
WebSphere MQ· IBM
95%
7.1.0.0 ≤ v ≤ 7.5.0.9
hp-hp-ux (environment) · ibm-aix (environment) · linux-linux-kernel (environment) · microsoft-windows (environment) · oracle-solaris (environment)
AIX· IBMdevice
80%
All versions

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

VDB Entryx_refsource_XFVendor Advisory
Source: [email protected]
https://exchange.xforce.ibmcloud.com/vulnerabilities/170967
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://www.ibm.com/support/pages/node/1135095

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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