man > perl5144delta(1)

PERL5144DELTA(1)                  Perl Programmers Reference Guide                  PERL5144DELTA(1)

NAME
       perl5144delta - what is new for perl v5.14.4

DESCRIPTION
       This document describes differences between the 5.14.3 release and the 5.14.4 release.

       If you are upgrading from an earlier release such as 5.12.0, first read perl5140delta, which
       describes differences between 5.12.0 and 5.14.0.

Core Enhancements
       No changes since 5.14.0.

Security
       This release contains one major, and medium, and a number of minor security fixes.  The
       latter are included mainly to allow the test suite to pass cleanly with the clang compiler's
       address sanitizer facility.

   CVE-2013-1667: memory exhaustion with arbitrary hash keys
       With a carefully crafted set of hash keys (for example arguments on a URL), it is possible to
       cause a hash to consume a large amount of memory and CPU, and thus possibly to achieve a
       Denial-of-Service.

       This problem has been fixed.

   memory leak in Encode
       The UTF-8 encoding implementation in Encode.xs had a memory leak which has been fixed.

   [perl #111594] Socket::unpack_sockaddr_un heap-buffer-overflow
       A read buffer overflow could occur when copying "sockaddr" buffers.  Fairly harmless.

       This problem has been fixed.

   [perl #111586] SDBM_File: fix off-by-one access to global ".dir"
       An extra byte was being copied for some string literals. Fairly harmless.

       This problem has been fixed.

   off-by-two error in List::Util
       A string literal was being used that included two bytes beyond the end of the string. Fairly
       harmless.

       This problem has been fixed.

   [perl #115994] fix segv in regcomp.c:S_join_exact()
       Under debugging builds, while marking optimised-out regex nodes as type "OPTIMIZED", it could
       treat blocks of exact text as if they were nodes, and thus SEGV. Fairly harmless.

       This problem has been fixed.

   [perl #115992] PL_eval_start use-after-free
       The statement "local $[;", when preceded by an "eval", and when not part of an assignment,
       could crash. Fairly harmless.

       This problem has been fixed.

   wrap-around with IO on long strings
       Reading or writing strings greater than 2**31 bytes in size could segfault due to integer
       wraparound.

       This problem has been fixed.

Incompatible Changes
       There are no changes intentionally incompatible with 5.14.0. If any exist, they are bugs and
       reports are welcome.

Deprecations
       There have been no deprecations since 5.14.0.

Modules and Pragmata
   New Modules and Pragmata
       None

   Updated Modules and Pragmata
       The following modules have just the minor code fixes as listed above in "Security" (version
       numbers have not changed):

       Socket
       SDBM_File
       List::Util

       Encode has been upgraded from version 2.42_01 to version 2.42_02.

       Module::CoreList has been updated to version 2.49_06 to add data for this release.

   Removed Modules and Pragmata
       None.

Documentation
   New Documentation
       None.

   Changes to Existing Documentation
       None.

Diagnostics
       No new or changed diagnostics.

Utility Changes
       None

Configuration and Compilation
       No changes.

Platform Support
   New Platforms
       None.

   Discontinued Platforms
       None.

   Platform-Specific Notes
       VMS 5.14.3  failed  to  compile  on  VMS due to incomplete application of a patch series that
           allowed "userelocatableinc" and "usesitecustomize"  to  be  used  simultaneously.   Other
           platforms were not affected and the problem has now been corrected.

Selected Bug Fixes
       •   In  Perl  5.14.0,  "$tainted  ~~  @array"  stopped  working properly.  Sometimes it would
           erroneously fail (when $tainted contained a string that occurs in  the  array  after  the
           first  element)  or  erroneously  succeed (when "undef" occurred after the first element)
           [perl #93590].

Known Problems
       None.

Acknowledgements
       Perl 5.14.4 represents approximately 5 months of development since Perl 5.14.3  and  contains
       approximately 1,700 lines of changes across 49 files from 12 authors.

       Perl  continues  to flourish into its third decade thanks to a vibrant community of users and
       developers. The following people are known to have contributed the improvements  that  became
       Perl 5.14.4:

       Andy Dougherty, Chris 'BinGOs' Williams, Christian Hansen, Craig A. Berry, Dave Rolsky, David
       Mitchell,  Dominic  Hargreaves,  Father  Chrysostomos,  Florian Ragwitz, Reini Urban, Ricardo
       Signes, Yves Orton.

       The list above is almost certainly incomplete as it is automatically generated  from  version
       control  history. In particular, it does not include the names of the (very much appreciated)
       contributors who reported issues to the Perl bug tracker.

       For a more complete list of all of Perl's historical contributors,  please  see  the  AUTHORS
       file in the Perl source distribution.

Reporting Bugs
       If  you  find  what  you  think is a bug, you might check the articles recently posted to the
       comp.lang.perl.misc newsgroup and the perl  bug  database  at  http://rt.perl.org/perlbug/  .
       There may also be information at http://www.perl.org/ , the Perl Home Page.

       If  you believe you have an unreported bug, please run the perlbug program included with your
       release.  Be sure to trim your bug down to a tiny but sufficient test case.  Your bug report,
       along with the output of "perl -V", will be sent off to perlbug AT perl.org to  be  analysed  by
       the Perl porting team.

       If  the  bug you are reporting has security implications, which make it inappropriate to send
       to a publicly archived mailing list, then please send it  to  perl5-security-report AT perl.org.
       This  points  to  a  closed subscription unarchived mailing list, which includes all the core
       committers, who be able to help assess the impact of issues, figure  out  a  resolution,  and
       help  co-ordinate  the release of patches to mitigate or fix the problem across all platforms
       on which Perl is supported. Please only use this address for  security  issues  in  the  Perl
       core, not for modules independently distributed on CPAN.

SEE ALSO
       The Changes file for an explanation of how to view exhaustive details on what changed.

       The INSTALL file for how to build Perl.

       The README file for general stuff.

       The Artistic and Copying files for copyright information.

perl v5.38.2                                 2026-06-12                             PERL5144DELTA(1)