Security Bulletin
Summary
Fixes a vulnerability reported in the libexpat parser that is used by IBM Tivoli Monitoring for parsing various configuration xml files as well as parsing soap requests.
Vulnerability Details
CVEID: CVE-2019-15903
DESCRIPTION: libexpat is vulnerable to a denial of service, caused by a heap-based buffer over-read in XML_GetCurrentLineNumber. By using a specially-crafted XML input, a remote attacker could exploit this vulnerability to cause the application to crash.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/166560 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
Affected Products and Versions
The basic services module, kbb for IBM Tivoli Monitoring is affected and is included in the TEMA(ax/gl), TEMS(ms), TEPS(cq) and the User Interface Extensions(ue) components.
For the various configuration xml files used by ITM, if they were to be manipulated with malicious intent by someone with access to your ITM installation, then you could be vulnerable to the CVE reported in this bulletin. Configuration files include those for the firewall gateway as well as private situations and audit logging.
For soap server enabling soap security also reduces the risk to just malicious users with ITM access.
| Affected Product(s) | Version(s) |
| IBM Tivoli Monitoring | 6.3.0 - 6.3.0.7 (up to 6.3.0.7 Service pack 2) |
Remediation/Fixes
| Fix | VRMF | Remediation/Fix |
| 6.3.0.7-TIV-ITM-SP0003 | 6.3.0.7 | IBM Tivoli Monitoring Service Pack 6.3.0.7-TIV-ITM-SP0003 |
Workarounds and Mitigations
None
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References
Change History
10 Feb 2020: 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:
12 February 2020
UID
ibm12281731