Security Bulletin
Summary
IBM MQ Appliance has addressed the following kernel vulnerability.
Vulnerability Details
CVEID:
CVE-2018-5391
DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by the improper handling of the reassembly of fragmented IPv4 and IPv6 packets by the IP implementation. By sending specially crafted IP fragments with random offsets, a remote attacker could exploit this vulnerability to exhaust all available CPU resources and cause a denial of service.
CVSS Base Score: 7.5
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/148388
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Affected Products and Versions
IBM MQ Appliance 9.1 Long Term Support (LTS) Release
Maintenance levels between 9.1.0.0 and 9.1.0.1
IBM MQ Appliance 9.1.x Continuous Delivery (CD) Release
Continuous delivery updates 9.1.1
Remediation/Fixes
IBM MQ Appliance 9.1 Long Term Support (LTS) Release
Apply
iFix IT27359
, or later.
IBM MQ Appliance 9.1.x Continuous Delivery (CD) Release
Apply
iFix IT27359
, or later.
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Change History
20 Feb 2019 : 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.
Internal Use Only
PSIRT advisory 14228
PSIRT product record 128537
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Document Information
Modified date:
20 February 2019
UID
ibm10792535