A fix is available
APAR status
Closed as program error.
Error description
After installation of system SSL apar OA47405, CICS is not able to use ciphers 01020304050609 even if apar UI27270 was not installed to maintain the support of the previous ciphers. . The SIT parameter ENCRYPTION=SSLV3 is not sufficient to be able to use the SSLv3 ciphers. . CICS uses the default list to build the base set of allowable ciphers for ENCRYPTION=SSLV3 and STRONG. The CIPHERS specified on a resource are then compared to this list (and the list in DFHSOXC_ to see if they are valid for use.) . With the System SSL PTF applied, cipher 03 (and others) are no longer in the default list so CICS needs to change the way it processes the available ciphers to be able to allow cipher 03 to be chosen again. .
Local fix
N/A
Problem summary
**************************************************************** * USERS AFFECTED: All CICS users. * **************************************************************** * PROBLEM DESCRIPTION: The capability to reinstate removed * * CIPHERS provided by PI39808 no longer * * works after system SSL APAR OA47405 is * * applied. * **************************************************************** * RECOMMENDATION: * **************************************************************** PI39808 provided a capability to reinstate removed CIPHERs by applying a usermod supplied by IBM support. After applying system SSL APAR OA47405, this capability no longer works. This is because the default list of 'supported' CIPHERs supplied by system SSL (and used by CICS) no longer includes CIPHERs 01, 02, 03, 04, 05, 06.
Problem conclusion
CICS has been changed to detect if a usermod version of module DFHSOXC is being used. If it is then CICS will support CIPHERs 01, 02, 03, 04, 05, 06 providing they do not appear in the exclude list of DFHSOXC.
Temporary fix
FIX AVAILABLE BY PTF ONLY
Comments
APAR Information
APAR number
PI48544
Reported component name
CICS TS Z/OS V4
Reported component ID
5655S9700
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2015-09-11
Closed date
2015-11-12
Last modified date
2015-12-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
PI52054 UI32936 UI32937
Modules/Macros
DFHSOSE DFHSOXC
Fix information
Fixed component name
CICS TS Z/OS V4
Fixed component ID
5655S9700
Applicable component levels
Fix is available
Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.
[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGMGV","label":"CICS Transaction Server"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"4.2","Edition":"","Line of Business":{"code":"LOB35","label":"Mainframe SW"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M","label":"APARs - z\/OS environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"4.2","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
02 December 2015