Security Bulletin
Summary
IBM MQ Appliance has resolved libxslt vulnerabilities.
Vulnerability Details
DESCRIPTION: libxslt could allow a remote attacker to bypass security restrictions, caused by a flaw in the xsltCheckRead and xsltCheckWrite routines. By sending a specially-crafted request, an attacker could exploit this vulnerability to bypass access restrictions.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/159898 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
CVEID: CVE-2019-18197
DESCRIPTION: libxslt is vulnerable to a denial of service, caused by a use-after-free flaw in the xsltCopyText function function in transform.c. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition or obtain uninitialized data.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/169684 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM MQ Appliance | 9.1 LTS |
| IBM MQ Appliance | 9.1 CD |
| IBM MQ Appliance | 9.2 LTS |
| IBM MQ Appliance | 9.2 CD |
Remediation/Fixes
IBM MQ Appliance 9.1 LTS
Apply the interim fix for APAR IT35457, or later maintenance.
IBM MQ Appliance 9.1 CD
Upgrade to IBM MQ CD 9.2.1 by applying the interim fix for APAR IT35457, or later maintenance.
IBM MQ Appliance 9.2 LTS
Apply the interim fix for APAR IT35457, or later maintenance.
IBM MQ Appliance 9.2 CD
Apply the interim fix for APAR IT35457, or later maintenance.
Workarounds and Mitigations
Get Notified about Future Security Bulletins
References
Change History
11 Jan 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:
03 March 2021
UID
ibm16403301