Security Bulletin
Summary
IBM MQ Appliance has addressed the following krb5 vulnerabilities.
Vulnerability Details
DESCRIPTION: MIT krb5 could allow a remote authenticated attacker to bypass security restrictions, caused by a flaw in the LDAP Kerberos database. By sending a specially-crafted request, an attacker could exploit this vulnerability to bypass DN container check.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/139970 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)
CVEID: CVE-2018-5729
DESCRIPTION: MIT krb5 is vulnerable to a denial of service, caused by a NULL pointer dereference in the LDAP Kerberos database. By sending specially-crafted data, a remote authenticated attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/139969
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/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 level 9.1.0.0 and 9.1.0.1
IBM MQ Appliance 9.1.x Continuous Delivery (CD) Release
Continuous delivery update 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
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
Document Location
Worldwide
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Document Information
Modified date:
20 February 2019
UID
ibm10796246