Security Bulletin
Summary
Multiple vulnerabilities in Open Source Apache Tomcat reported by The Apache Software Foundation affect IBM Tivoli Application Dependency Discovery Manager (TADDM)
Vulnerability Details
CVEID: CVE-2020-13935
DESCRIPTION: Apache Tomcat is vulnerable to a denial of service, caused by improper validation of the payload length in a WebSocket frame. By sending multiple requests with invalid payload lengths, a remote attacker could exploit this vulnerability to cause the application to enter into an infinite loop.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/185227 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
| Affected Product(s) | Version(s) |
| IBM Tivoli Application Dependency Discovery Manager | 7.3.0.0 |
Remediation/Fixes
Below eFix is prepared on top of 7.3.0.0 (7.3.0.1 - 7.3.0.7 not affected)
| Fix | VRMF | APAR | How to acquire fix |
| efix_tomcat70105_201411291020.zip | 7.3.0.0 | None | Download eFix |
Please get familiar with eFix readme in etc/<efix_name>_readme.txt
Note that the eFix requires manual deletion of the external/apache-tomcat directory.
Workarounds and Mitigations
The above eFix is applicable only to 7.3.0.0 and can be downloaded and applied directly.
Note: TADDM 7.3.0.1 - 7.3.0.7 are not affected as they use WebSphere Liberty Profile.
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References
Change History
23 Sep 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:
30 September 2020
Initial Publish date:
23 September 2020
UID
ibm16339627