PROBLEM:  (QARS 71007) (Patch ID: OSF500-047) 
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This patch fixes a problem in which `ufs_fsck` can get blocked while
attempting to flush nfs buffers for a service that has become suspended.

PROBLEM:  (CLD ZUO101615, QAR 71587)    (Patch ID: OSF500-075)
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This patch fixes a problem that was causing the csh globbing function to
be extremely slow when accessing file information on NFS, AFS, or VMS file
systems.

PROBLEM: (BCSM807S5) (PATCH ID: OSF500-294)
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Some applications assume that initial allocations of memory from the C
run-time library's malloc() function will return zero-filled memory. The
problem is that malloc() and free() often write into the first 16 bytes of
the allocated memory.
This change to malloc() zeros out the first 16 bytes in the allocated memory.
The result is that memory allocated prior to any call to free() -- and prior
to any other run-time library function that might call free -- should be zero
filled.


PROBLEM: (79876) (PATCH ID: OSF500-245)
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If the "where" or "t" ladebug command does not show all the currently active 
functions, it may be because of this problem. The program being debugged had 
to have been built with "split procedures", which is done via options in the 
om and spike tools. For spike, split procedures are generated if profiling is 
specified. For om, split procedures are generated if profiling AND the
-split_procedure option are specified.


PROBLEM: (73690) (PATCH ID: OSF500-204)
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If a code segment contained both gmtime() and localtime() calls,
the time zone abbreviation set in the tm_zone member of the
tm struct returned by a subsequent call to gmtime() could be
incorrect (ie: something other than "GMT").


PROBLEM: (78744) (PATCH ID: OSF500-191)
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The regular expression processing logic did not identify matches that involved
expressions with multiple subexpressions and alternate patterns.  This fix adds
this functionality back to the regular expression code so that these patterns
will generate accurate match results.


PROBLEM: (80995) (PATCH ID: OSF500-280)
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If you encounter a filename for a temporary file containing a '#' character,
it is probably because of this problem.
This would be a problem particularly if the name were used inside a shell script
because the '#' character indicates the start of a comment.


PROBLEM: (BCSM81KWR, 74875, 77761) (PATCH ID: OSF500-233)
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This patch corrects the problem with /usr/bin/login in an NIS environment to 
better handle group information processing.


PROBLEM: (SSRT0636U) (PATCH ID: OSF500-156)
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A potential security vulnerability has been discovered, where under
certain circumstances, system integrity may be compromised. This may
be in the form of improper file or privilege management. Compaq has
corrected this potential vulnerability.


PROBLEM: (81106, 81262) (PATCH ID: OSF500-288)
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If the TZ environment variable is set to ":" (as in TZ=:), either on
the command line or via a putenv() call, the data for the default time
zone (GMT) is supposed to be loaded and used when time-related libc
functions (such as tzset(), mktime(), localtime(), etc) are called.
However, due to this bug, the data is not loaded and time zone
information will either be missing (as in empty time zone
abbreviations) or erroneously consistent with a previous time zone
used.  It may also lead to incorrect errors from mktime() when valid
input is given.


PROBLEM: (79556) (PATCH ID: OSF500-242)
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This patch adds functionality to terminate the resulting string from calls to
swprintf().