CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
86.9%
An issue was identified within the libcurl library that affects IBM MQ. IBM MQ uses libcurl to provide HTTPURL functionality. This is only used to download remote CCDT files and is not used to send or receive messages.
CVEID:CVE-2023-38039
**DESCRIPTION:**cURL libcurl is vulnerable to a denial of service, caused by not limiting the number and size of headers accept in a response. By sending a specially crafted request, a remote attacker could exploit this vulnerability to run out of heap memory, and results in a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/265946 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 Product(s) | Version(s) |
---|---|
IBM MQ | 9.0 LTS |
IBM MQ | 9.1 LTS |
IBM MQ | 9.2 LTS |
IBM MQ | 9.3 LTS |
IBM MQ | 9.3 CD |
The following installable IBM MQ components are affected by the vulnerability:
- Runtime
- Standard Client
If you are running any of these listed components, please apply the remediation/fixes as described below. For more information on the definitions of components used in this list, see <https://www.ibm.com/support/pages/installable-component-names-used-ibm-mq-security-bulletins>
This issue was resolved under APAR IT44585
IBM MQ 9.0 LTS
Apply Cumulative Security Update 9.0.0.21
IBM MQ 9.1 LTS
Apply Cumulative Security Update 9.1.0.18
IBM MQ 9.2 LTS
IBM MQ 9.3 LTS
Apply Cumulative Security Update 9.3.0.11
IBM MQ version 9.3 CD
Upgrade to IBM MQ version 9.3.4
None
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
86.9%