PTF Cover Letter
PTF ( Program Temporary Fixes ) Cover letter
LIC-COMM-TCPIP-INCORROUT Response sent to packet from multic
Pre/Co-Requisite PTF / Fix List
REQ LICENSED PTF/FIX LEVEL
TYPE PROGRAM RELEASE NUMBER MIN/MAX OPTION
---- -------- --------- ------- ------- ------
TR 5770999 V7R2M0 MF99109 00/00 0000
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 'IBM License Agreement for Machine
Code', the terms of which were provided in a printed document that was
delivered with the machine.
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.
APAR Error Description / Circumvention
-----------------------------------------------
IPv4 packets received with a multicast IP source address are
accepted by TCP/IP and may generate a response. This results in
Nessus scanner reporting TCP/IP Multicast Address Handling
Remote DoS. The IBM i TCP/IP stack is not adversely affected by
these packets.
CORRECTION FOR APAR MA48619 :
-----------------------------
IPv4 packets received with an invalid source address (either a
multicast address, the limited broadcast address, or a directed
broadcast address) will be dropped.
CIRCUMVENTION FOR APAR MA48619 :
--------------------------------
None.
Activation Instructions
None.
Special Instructions
None.
Default Instructions
THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.
Supersedes
PTF/FIX NO(S). APAR TITLE LINE
-------------- ------------------------------------------------------------
NONE
Summary Information
| System.............................. | i |
| Models.............................. | |
| Release............................. | V7R2M0 |
| Licensed Program............... | 5770999 |
| APAR Fixed.......................... | View details for APAR MA48619 |
| Superseded by:...................... | |
| Recompile........................... | N |
| Library............................. | QSYS |
| MRI Feature ........................ | NONE |
| Cum Level........................... | C1084720 |
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Document Information
Modified date:
17 April 2021