Fix (APAR): PI58918 Status: Fix Release: 8.5.5.8 Operating System: AIX,HP-UX,IBM i,Linux,Solaris,Windows Supersedes Fixes: PI57228,PI58457 CMVC Defect: Byte size of APAR: 3663870 Date: 20160531 Abstract: Response Splitting Vulnerability when usng the addCookie API Description/symptom of problem: PI58918 resolves the following problem: Response Splitting Vulnerability when usng the addCookie API Directions to apply fix: 1. Open a console and direct it to the location of your iFix jar 2. Run the command "java -jar 8558-wlp-archive-IFPI58918.jar". The following launch options are available for the jar: --installLocation [LibertyRootDir] by default the jar will look for a "wlp" directory in its current location. If your Liberty profile install location is different to "wlp" and/or is not in the same directory as the jar then you can use this option to change where the jar will patch. [LibertyRootDir] can either be relative to the location of the jar or an absolute file path. --suppressInfo hides all messages other than confirming the patch has completed or error messages. 3. Stop your Liberty profile server(s). 4. When you next start your Liberty profile server(s), the fix will become active in your runtime. Directions to remove fix: 1. Stop your Liberty profile server(s). 2. You will need to delete the following files (file locations are relative to your Liberty profile install root): - lib/com.ibm.ws.transport.http_1.0.11.cl50820160531-1702.jar - lib/fixes/8558-wlp-archive-IFPI58918_8.5.500820160531_1702.xml 3. When you next start your Liberty profile server(s), the fix will become inactive in your runtime. Directions to re-apply fix: 1. Follow the instructions to apply the fix. Additional Information: