Security Bulletin
Summary
IBM MQ Appliance has resolved multiple BIND vulnerabilities.
Vulnerability Details
DESCRIPTION: ISC BIND is vulnerable to a denial of service, caused by an assertion failure when attempting to verify a truncated response to a TSIG-signed request. By sending a specially-crafted request, a remote authenticated attacker could exploit this vulnerability to cause the server to exit.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/187060 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2020-8623
DESCRIPTION: ISC BIND is vulnerable to a denial of service, caused by an assertion failure when built with "--enable-native-pkcs11". By sending a specially-crafted packet, a remote attacker could exploit this vulnerability to cause the server to crash.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/187061 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)
CVEID: CVE-2020-8624
DESCRIPTION: ISC BIND could allow a remote authenticated attacker to bypass security restrictions, caused by the failure to properly enforce the update-policy rules of type "subdomain". By sending a specially-crafted request, an attacker could exploit this vulnerability to update other contents of the zone.
CVSS Base score: 4.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/187062 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)
Affected Products and Versions
Affected Product(s) | Version(s) |
IBM MQ Appliance | 9.1 LTS |
IBM MQ Appliance | 9.2 CD |
IBM MQ Appliance | 9.2 LTS |
IBM MQ Appliance | 9.1 CD |
Remediation/Fixes
IBM MQ Appliance 9.1 LTS
Apply ifix for APAR IT35457, or later maintenance.
IBM MQ Appliance 9.1 CD
Upgrade to IBM MQ CD 9.2.1 with iFix for APAR IT35457, or later maintenance.
IBM MQ Appliance 9.2 LTS
Apply ifix for APAR IT35457, or later maintenance.
IBM MQ Appliance 9.2 CD
Apply ifix for APAR IT35457, or later maintenance.
Workarounds and Mitigations
Get Notified about Future Security Bulletins
References
Change History
16 Feb 2021: 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
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
17 February 2021
UID
ibm16403291