Security Bulletin
Summary
There is a potential denial of service in Apache CXF that is used by WebSphere Application Server.
Vulnerability Details
CVEID: CVE-2017-12624
DESCRIPTION: Apache CXF is vulnerable to a denial of service. By using a specially crafted message attachment header, a remote attacker could exploit this vulnerability to cause the JAX-WS and JAX-RS services stop responding.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/135095 for the current score
CVSS Environmental Score*: Undefined
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
This vulnerability affects all versions of Liberty for Java in IBM Cloud up to and including v3.18.
Remediation/Fixes
To upgrade to Liberty for Java v3.19-20180313-1017 or higher, you must re-stage or re-push your application.
To find the current version of Liberty for Java in IBM Cloud being used, from the command-line Cloud Foundry client by running the following commands:
cf ssh <appname> -c cat "staging_info.yml"
Look for the following lines:
{"detected_buildpack":"Liberty for Java(TM) (WAR, liberty-18.0.0_1, buildpack-v3.19-20180313-1017, ibmjdk-1.8.0_20180214, env)","start_command":".liberty/initial_startup.rb"}
To re-stage your application using the command-line Cloud Foundry client, use the following command:
cf restage <appname>
To re-push your application using the command-line Cloud Foundry client, use the following command:
cf push <appname>
Workarounds and Mitigations
none.
Monitor IBM Cloud Status for Future Security Bulletins
Monitor the security notifications on the IBM Cloud Status page to be advised of future security bulletins.
References
Change History
03 April 2018: original document 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.
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Document Information
Modified date:
15 June 2018
UID
swg22015296