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HP Services Software Patches - ultsendmail_e01044_sendmail
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Copyright (c) Digital Equipment Corporation 1995.
All rights reserved.
OP/SYS: DEC ULTRIX RISC and VAX Versions 4.3, 4.3A, 4.4
COMPONENT: sendmail
SOURCE: Digital Equipment Corporation
ECO INFORMATION:
ECO Kit Name: ULTSENDMAIL_E01044
ECO Kits Superseded by This ECO Kit: none
ECO Kit Approximate Size: 1986560 bytes
System Reboot Necessary: No
ECO KIT SUMMARY:
An ECO kit exists for sendmail on DEC ULTRIX V4.3, V4.3a, IV4.4.
This kit addresses the following problems:
(VAX V4.3, RISC V4.3, RISC V4.3a, VAX V4.4, RISC V4.4)
o A potential security vulnerability has been discovered where
under certain circumstances authorized users may gain unauthorized
privileges.
o sendmail was failing when large distribution lists were used. A
typical error message was "Unbalanced <" when the original
distribution list was well-formed.
(VAX V4.3, RISC V4.3, RISC V4.3a)
o When mail is queued due to heavy load average the mail size is not
checked. The mail is later sent even if the size exceeds the maximum
size specified by the M option in /etc/sendmail.cf
(VAX V4.3, RISC V4.3)
o Excess network traffic is created on the domain master server and the
root servers.
This problem occurred because sendmail does a dns lookup of the machine
name during the smtp HELO for all connection to sendmail. That means
that even DECnet connections would cause a dns lookup. But those
lookups would always fail, all the way back to the root servers.
In this patched version of sendmail the lookup is only done if the
connection is made to sendmail via the IP circuit.
(VAX V4.4)
o sendmail dies with "bus error (core dumped)" on VAX machines while
trying to resolve an address that has an MX record.
(VAX V4.3, RISC V4.3)
o Sendmail does a DNS lookup and returns a pointer beyond the valid
address which causes bus error and core-dump. With the fix, especially
for VAX's platform, the unsigned long pointer will not be a negative
number which allows a DNS lookup getting out of the loop and returns
the pointer to the hostname correctly.
Files on this server are as follows:
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»ultsendmail_e01044_sendmail.README
»ultsendmail_e01044.CHKSUM
»ultsendmail_e01044.tar
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