Security Bulletin
Summary
A number of malformed MQTT client flows could be issued by a malicious user to cause the MQXR service to abend and require manual restart.
Vulnerability Details
CVEID: CVE-2015-4943
DESCRIPTION: IBM WebSphere MQ could allow a remote attacker to crash the MQXR service using a sequence of connect and disconnects which will have to be restarted.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/104516 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVEID: CVE-2015-4941
DESCRIPTION: IBM WebSphere MQ could allow a remote attacker to crash the MQXR service due to incorrect handling of abbreviated TLS handshake.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/104514 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVEID: CVE-2015-4942
DESCRIPTION: IBM WebSphere MQ could allow a remote attacker to crash the MQXR service using a sequence of connect and disconnects which will have to be restarted.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/104515 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Affected Products and Versions
IBM WebSphere MQ 8.0
- IBM WebSphere MQ 8.0.0.3 and earlier maintenance levels
IBM WebSphere MQ 7.5
- IBM WebSphere MQ 7.5.0.5 and earlier maintenance levels
IBM WebSphere MQ 7.1
- IBM WebSphere MQ 7.1.0.6 and earlier maintenance levels
Remediation/Fixes
WebSphere MQ 8.0
- Apply fixpack 8.0.0.4
WebSphere MQ 7.5
- Apply interim ifix IT09866
WebSphere MQ 7.1
- Apply fixpack 7.1.0.7
Workarounds and Mitigations
None
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References
Acknowledgement
Reported to IBM by Codenomicon at http://www.codenomicon.com/
Change History
01 February 2016: Original version published
*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.
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Document Information
Modified date:
15 June 2018
UID
swg21972012