Security Bulletin
Summary
This security bulletin addresses the vulnerability in Open Source Apache CXF that affect IBM Tivoli Application Dependency Discovery Manager.
Vulnerability Details
CVEID: CVE-2021-30468
DESCRIPTION: Apache CXF is vulnerable to a denial of service, caused by an infinite loop flaw in the JsonMapObjectReaderWriter function. By sending a specially-crafted JSON to a web service, a remote attacker could exploit this vulnerability to consume available CPU resources.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/203830 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)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM Tivoli Application Dependency Discovery Manager | 7.3.0.0-7.3.0.8 |
Remediation/Fixes
TADDM 7.3.0.5 and 7.3.0.8 : The eFix in the table below can be downloaded and applied directly.
TADDM 7.3.0.6 and 7.3.0.7 : If there are existing eFixes on these versions (ls -lrt etc/efix*), please contact IBM support and open a case for a custom version of the eFixes. Include the current eFix level (ls -lrt etc.efix*), TADDM version and a link to this bulletin. The eFix in the table below is created to be installed on the respective FixPacks only if there are no previously applied eFixes.
| Fix | VRMF | APAR |
How to acquire fix |
| efix_CXF_CVE-2021-30468_FP5180802.zip | 7.3.0.5 | None | Download eFix |
| efix_CXF_CVE-2021-30468_FP6190313.zip | 7.3.0.6 | None | Download eFix |
| efix_CXF_CVE-2021-30468_FP7200218.zip | 7.3.0.7 | None | Download eFix |
| efix_CXF_CVE-2021-30468_FP8201126.zip | 7.3.0.8 | None | Download eFix |
Note: Before TADDM 7.3.0.5, Java 7 was used and this CXF fix is applicable to Java8. Hence, no eFix can be provided for versions before 7.3.0.5
Workarounds and Mitigations
For customers on TADDM 7.3.0.3 or 7.3.0.4, recommendation is to upgrade to the latest version and then apply the efix directly.
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References
Change History
23 Aug 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:
24 August 2021
Initial Publish date:
23 August 2021
UID
ibm16483303