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SI69883 - OSP-DNS/Fix CVE-2018-5743 for DNS bind

PTF ( Program Temporary Fixes ) Cover letter


Order this fix

Abstract

OSP-DNS/Fix CVE-2018-5743 for DNS bind


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
DIST 5770SS1  V7R2M0    SE64883   NONE     0031 (SEE MRI PTF/FIX LIST BELOW)

MRI PTF/FIX LIST
----------------
APAR SE64883 AFFECTS THESE LANGUAGES.  IF YOU HAVE ANY OF THESE
LANGUAGES INSTALLED, INSTALL THE DISTRIBUTION REQUISITE MRI PTF THAT
CORRESPONDS TO THE LANGUAGE(S) INSTALLED ON YOUR SYSTEM.
-----------------------------------------------------------------
:  FEATURE                                   LICENSED  PTF/FIX  :
:  CODE     LANGUAGE                         PROGRAM   NUMBER   :
:  -------  -------------------------------  --------  -------  :
:  2924     ENGLISH UPPER/LOWER CASE SBCS    5770SS1   SI60811  :
:  2902     ESTONIAN                         5770SS1   SI60812  :
:  2903     LITHUANIAN                       5770SS1   SI60813  :
:  2904     LATVIAN                          5770SS1   SI60814  :
:  2905     VIETNAMESE                       5770SS1   SI60815  :
:  2906     LAO                              5770SS1   SI60816  :
:  2909     BELGIAN ENGLISH                  5770SS1   SI60817  :
:  2911     SLOVENIAN                        5770SS1   SI60818  :
:  2912     CROATIAN                         5770SS1   SI60819  :
:  2913     MACEDONIAN                       5770SS1   SI60820  :
:  2914     SERBIAN                          5770SS1   SI60821  :
:  2922     PORTUGUESE                       5770SS1   SI60822  :
:  2923     DUTCH                            5770SS1   SI60823  :
:  2925     FINNISH                          5770SS1   SI60824  :
:  2926     DANISH                           5770SS1   SI60825  :
:  2928     FRENCH                           5770SS1   SI60826  :
:  2929     GERMAN                           5770SS1   SI60827  :
:  2930     JAPAN LOWER CASE                 5770SS1   SI60828  :
:  2931     SPANISH                          5770SS1   SI60829  :
:  2932     ITALIAN                          5770SS1   SI60830  :
:  2933     NORWEGIAN - BOKMAL               5770SS1   SI60831  :
:  2937     SWEDISH                          5770SS1   SI60832  :
:  2938     ENGLISH UPPER CASE DBCS          5770SS1   SI60833  :
:  2939     SWISS GERMAN                     5770SS1   SI60834  :
:  2940     SWISS FRENCH                     5770SS1   SI60835  :
:  2942     SWISS ITALIAN                    5770SS1   SI60836  :
:  2954     ARABIC                           5770SS1   SI60837  :
:  2956     TURKISH                          5770SS1   SI60838  :
:  2957     GREEK                            5770SS1   SI60839  :
:  2958     ICELANDIC                        5770SS1   SI60840  :
:  2961     HEBREW                           5770SS1   SI60841  :
:  2962     JAPANESE                         5770SS1   SI60842  :
:  2963     BELGIUM DUTCH                    5770SS1   SI60843  :
:  2966     BELGIUM FRENCH                   5770SS1   SI60844  :
:  2972     THAI                             5770SS1   SI60845  :
:  2974     BULGARIAN                        5770SS1   SI60846  :
:  2975     CZECH                            5770SS1   SI60847  :
:  2976     HUNGARIAN                        5770SS1   SI60848  :
:  2978     POLISH LANGUAGE                  5770SS1   SI60849  :
:  2979     RUSSIAN                          5770SS1   SI60850  :
:  2980     BRAZILIAN PORTUGUESE             5770SS1   SI60851  :
:  2981     CANADIAN FRENCH                  5770SS1   SI60852  :
:  2984     ENGLISH UPPER/LOWER CASE DBCS    5770SS1   SI60853  :
:  2986     KOREAN                           5770SS1   SI60854  :
:  2987     TRADITIONAL CHINESE              5770SS1   SI60855  :
:  2989     SIMPLIFIED CHINESE               5770SS1   SI60856  :
:  2992     ROMANIAN                         5770SS1   SI60857  :
:  2994     SLOVAKIAN                        5770SS1   SI60858  :
:  2995     ALBANIAN                         5770SS1   SI60859  :
:  2996     PORTUGUESE MNCS                  5770SS1   SI60860  :
:  2998     FARSI                            5770SS1   SI60861  :
-----------------------------------------------------------------




NOTICE:
-------
Application of this PTF may disable or render ineffective programs that
use system memory addresses not generated by the IBM translator,
including programs that circumvent control technology designed to limit
interactive capacity to purchased levels.  This PTF may be a prerequisite
for future PTFs.  By applying this PTF you authorize and agree to the
foregoing.

This PTF is subject to the terms of the license agreement which
accompanied, or was contained in, the Program for which you are obtaining
the PTF.  You are not authorized to install or use the PTF except as part
of a Program for which you have a valid Proof of Entitlement.

SUBJECT TO ANY WARRANTIES WHICH CAN NOT BE EXCLUDED OR EXCEPT AS EXPLICITLY
AGREED TO IN THE APPLICABLE LICENSE AGREEMENT OR AN APPLICABLE SUPPORT
AGREEMENT, IBM MAKES NO WARRANTIES OR CONDITIONS EITHER EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON INFRINGEMENT,
REGARDING THE PTF.

The applicable license agreement may have been provided to you in printed
form and/or may be viewed using the Work with Software Agreements (WRKSFWAGR)
CL command.


APAR Error Description / Circumvention

-------------------------------------------------
ISC released CVE-2018-5743.
CVE-2018-5743: By design, BIND is intended to limit the number
of TCP clients that can be connected at any given time. The
number of allowed connections is a tunable parameter which, if
unset, defaults to a conservative value for most servers.
Unfortunately, the code which was intended to limit the number
of simultaneous connections contains an error which can be
exploited to grow the number of simultaneous connections beyond
this limit.

CORRECTION FOR APAR 'SE71220' :
-------------------------------
Fixed the problem with the ISC-provided fix.

CIRCUMVENTION FOR APAR 'SE71220' :
----------------------------------
None.


Activation Instructions

None.




Special Instructions

IF DNS SERVER IS NOT USED, THE PTF CAN BE IGNORED AND NO ACTION IS
REQUIRED. OTHERWISE, PLEASE SAVE DOMAIN NAME SERVER DATA AS A BACKUP
BEFORE APPLYING THE PTF. AND THEN FOLLOW THESE STEPS:
1. END ALL DOMAIN NAME SERVERS ON THE SYSTEM: ENDTCPSVR SERVER(*DNS)
DNSSVR(*ALL)
2. APPLY THE PTF
3. START ALL DOMAIN NAME SERVERS OR A SPECIFIED ONE: STRTCPSVR
SERVER(*DNS) DNSSVR(*ALL) OR STRTCPSVR SERVER(*DNS) DNSSVR(<DNS_NAME>)

********************************************************************
THE FOLLOWING ARE SUPERSEDED SPECIAL INSTRUCTIONS. IF THE SUPERSEDED
PTF HAS ALREADY BEEN APPLIED AND ITS SPECIAL INSTRUCTION FOLLOWED,
IT IS NOT NECESSARY TO FOLLOW THAT SPECIAL INSTRUCTION AGAIN.
********************************************************************

SPECIAL INSTRUCTIONS FOR SUPERSEDED PTF SI69118 :
=================================================

IF DNS SERVER IS NOT USED, THE PTF CAN BE IGNORED AND NO ACTION IS
REQUIRED. OTHERWISE, PLEASE SAVE DOMAIN NAME SERVER DATA AS A BACKUP
BEFORE APPLYING THE PTF. AND THEN FOLLOW THESE STEPS:
1. END ALL DOMAIN NAME SERVERS ON THE SYSTEM: ENDTCPSVR SERVER(*DNS)
DNSSVR(*ALL)
2. APPLY THE PTF
3. START ALL DOMAIN NAME SERVERS OR A SPECIFIED ONE: STRTCPSVR
SERVER(*DNS) DNSSVR(*ALL) OR STRTCPSVR SERVER(*DNS) DNSSVR(<DNS_NAME>)

SPECIAL INSTRUCTIONS FOR SUPERSEDED PTF SI68467 :
=================================================

IF DNS SERVER IS NOT USED, THE PTF CAN BE IGNORED AND NO ACTION IS
REQUIRED. OTHERWISE, PLEASE SAVE DOMAIN NAME SERVER DATA AS A BACKUP
BEFORE APPLYING THE PTF. AND THEN FOLLOW THESE STEPS:
1. END ALL DOMAIN NAME SERVERS ON THE SYSTEM: ENDTCPSVR SERVER(*DNS)
DNSSVR(*ALL)
2. APPLY THE PTF
3. START ALL DOMAIN NAME SERVERS OR A SPECIFIED ONE: STRTCPSVR
SERVER(*DNS) DNSSVR(*ALL) OR STRTCPSVR SERVER(*DNS) DNSSVR(<DNS_NAME>)


Option 31(Domain Name System) must be installed in the system before
applying the PTF.

PLEASE SAVE DOMAIN NAME SERVER DATA AS A BACKUP BEFORE APPLYING THE
PTF. AND THEN FOLLOW THESE STEPS:
1. END ALL DOMAIN NAME SERVERS ON THE SYSTEM: ENDTCPSVR SERVER(*DNS)
DNSSVR(*ALL)
2. APPLY THE PTF
3. START ALL DOMAIN NAME SERVERS OR A SPECIFIED ONE: STRTCPSVR
SERVER(*DNS) DNSSVR(*ALL) OR STRTCPSVR SERVER(*DNS) DNSSVR(<DNS_NAME>)

END DOMAIN NAME SERVERS ON THE SYSTEM
EXAMPLE: ENDTCPSVR SERVER(*DNS) DNSSVR(*ALL)
THEN APPLY THE PTF
START DOMAIN NAME SERVER AGAIN
EXAMPLE: STRTCPSVR SERVER(*DNS) DNSSVR(<DNS_NAME>)


Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   SI69118      OSP-DNS/Fix CVE-2018-5744, CVE-2018-5745 and CVE-2019-6465 f
   SI68706      OSP-DNS/Fix CVE-2018-5741 for DNS bind
   SI68467      OSP-DNS/Fix CVE-2018-5740 for DNS bind
   SI66584      OSP-MSGMCH4426-PAR RUNDNSUPD COMMAND GETS MCH4426 ESCAPE MES
   SI66813      OSP-DNS/Fix CVE-2017-3145 for DNS bind
   SI65337      OSP-DNS/Refresh DNS BIND to fix CVE-2017-3142 and CVE-2017-3
   SI64630      OSP-DNS/Fix CVE-2017-3136 and CVE-2017-3137 for DNS bind
   SI63769      OSP-DNS/Fix CVE-2016-9131, CVE-2016-9444 and CVE-2017-3135 f
   SI63739      OSP-INCORROUT USING STRHOSTQRY GIVES INCORRECT OUT PUT WHEN
   SI62942      OSP-DNS/Fix CVE-2016-2775, CVE-2016-2776 and CVE-2016-8864 f
   SI60804      OSP-DNS upgrades from bind 9.7.4 to bind 9.10.1
   SI60342      OSP-DNS/Fix CVE-2016-1285 and CVE-2016-1286 for DNS bind
   SI59569      OSP-DNS CVE-2015-8704 SPECIFIC APL DATA COULD TRIGGER AN INS
   SI59100      OSP-DNS/Fix CVE-2015-8000 for DNS bind
   SI57893      TCPIP-CFG-UNPRED
   SI57655      TCPIP-CFG-UNPRED
   SI56803      F/ENDTCPSVR-MOD/QTOBJOBS-PRCS/ERRNO 3025
   SI56233      TCPIP-CFG-UNPRED
   SI55866      OSP-DNS Fix for CVE-2014-8500:  A Defect in Delegation Handl
   SI52362      OSP-DNS- ENDTCPSVR *DNS COMMAND SHOWS MSG TCP1A17 EVEN WITH
   SI52362      OSP Several DNS bug fixes
   SI51568      DNS - Fixes for DNS security vulnerabilities (CVE fixes)

Summary Information

System.............................. i
Models..............................
Release............................. V7R2M0
Licensed Program............... 5770SS1
APAR Fixed.......................... SE71220
Superseded by:...................... View fix details for PTF SI70732
Recompile........................... N
Library............................. QDNS
MRI Feature ........................ NONE
Cum Level........................... C9297720


IBM i Support

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Document information

More support for: i family

Software version: V7R2M0

Operating system(s): OS/400

Reference #: SI69883

Modified date: 14 June 2019