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AUSCERT External Security Bulletin Redistribution
ESB-2023.0061
IBM MQ Appliance is affected by kernel vulnerabilities
(CVE-2021-45485, CVE-2021-45486 and CVE-2022-1012)
3 January 2023
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM MQ Appliance
Publisher: IBM
Operating System: Network Appliance
Resolution: Patch/Upgrade
CVE Names: CVE-2022-1012 CVE-2021-45486 CVE-2021-45485
Original Bulletin:
https://www.ibm.com/support/pages/node/6851373
Comment: CVSS (Max): 8.2 CVE-2022-1012 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H)
CVSS Source: IBM
Calculator: https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
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Security Bulletin: IBM MQ Appliance is affected by kernel vulnerabilities
(CVE-2021-45485, CVE-2021-45486 and CVE-2022-1012)
Document Information
Document number : 6851373
Modified date : 23 December 2022
Product : IBM MQ Appliance
Component : -
Software version : 9.3.0.0,9.3.0.1,9.3.1
Operating system(s): Appliance
Security Bulletin
Summary
IBM MQ Appliance has resolved kernel vulnerabilities.
Vulnerability Details
CVEID: CVE-2021-45485
DESCRIPTION: Linux Kernel could allow a local attacker to obtain sensitive
information, caused by improperly consider attacks from many IPv6 source
addresses in net/ipv6/output_core.c in the IPv6 implementation. By sending a
specially-crafted request, an attacker could exploit this vulnerability to
obtain sensitive information, and use this information to launch further
attacks against the affected system.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
216133 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
CVEID: CVE-2021-45486
DESCRIPTION: Linux Kernel could allow a local attacker to obtain sensitive
information, caused by the use of small hash table in net/ipv4/route.c in the
IPv4 implementation. By utilize cryptographic attack techniques, an attacker
could exploit this vulnerability to obtain sensitive information, and use this
information to launch further attacks against the affected system.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
216134 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
CVEID: CVE-2022-1012
DESCRIPTION: Linux Kernel could allow a remote attacker to obtain sensitive
information, caused by a memory leak flaw in the TCP source port generation
algorithm in the net/ipv4/tcp.c function. By sending a specially-crafted
request, an attacker could exploit this vulnerability to obtain sensitive
information or cause a denial of service condition.
CVSS Base score: 8.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
230055 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H)
Affected Products and Versions
+--------------------+----------+
|Affected Product(s) |Version(s)|
+--------------------+----------+
|IBM MQ Appliance |9.3 LTS |
+--------------------+----------+
|IBM MQ Appliance |9.3 CD |
+--------------------+----------+
Remediation/Fixes
This vulnerability is addressed under APAR IT42098
IBM strongly recommends addressing the vulnerability now.
IBM MQ Appliance version 9.3 LTS
Apply 9.3.0.2 , or later firmware.
IBM MQ Appliance version 9.3 CD
Apply 9.3.1 interim fix firmware for IT42098 , or later firmware.
Workarounds and Mitigations
None
Change History
22 Sep 2022: Initial Publication
*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
According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF
ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to
address potential vulnerabilities, IBM periodically updates the record of
components contained in our product offerings. As part of that effort, if IBM
identifies previously unidentified packages in a product/service inventory, we
address relevant vulnerabilities regardless of CVE date. Inclusion of an older
CVEID does not demonstrate that the referenced product has been used by IBM
since that date, nor that IBM was aware of a vulnerability as of that date. We
are making clients aware of relevant vulnerabilities as we become aware of
them. "Affected Products and Versions" referenced in IBM Security Bulletins are
intended to be only products and versions that are supported by IBM and have
not passed their end-of-support or warranty date. Thus, failure to reference
unsupported or extended-support products and versions in this Security Bulletin
does not constitute a determination by IBM that they are unaffected by the
vulnerability. Reference to one or more unsupported versions in this Security
Bulletin shall not create an obligation for IBM to provide fixes for any
unsupported or extended-support products or versions.
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