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PERLDELTA(1)                               Perl Programmers Reference Guide                              PERLDELTA(1)



NAME
       perldelta - what is new for perl v5.16.3

DESCRIPTION
       This document describes differences between the 5.16.2 release and the 5.16.3 release.

       If you are upgrading from an earlier release such as 5.16.1, first read perl5162delta, which describes
       differences between 5.16.1 and 5.16.2.

Core Enhancements
       No changes since 5.16.0.

Security
       This release contains one major and a number of minor security fixes.  These 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.

   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.

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

Incompatible Changes
       There are no changes intentionally incompatible with 5.16.0. If any exist, they are bugs and reports are
       welcome.

Deprecations
       There have been no deprecations since 5.16.0.

Modules and Pragmata
   Updated Modules and Pragmata
       ·   Encode has been upgraded from version 2.44 to version 2.44_01.

       ·   Module::CoreList has been upgraded from version 2.76 to version 2.76_02.

       ·   XS::APItest has been upgraded from version 0.38 to version 0.39.

Known Problems
       None.

Acknowledgements
       Perl 5.16.3 represents approximately 4 months of development since Perl 5.16.2 and contains approximately 870
       lines of changes across 39 files from 7 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 5.16.3:

       Andy Dougherty, Chris 'BinGOs' Williams, Dave Rolsky, David Mitchell, Michael Schroeder, Ricardo Signes, Yves
       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 [email protected] 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 [email protected]. This points to a closed
       subscription unarchived mailing list, which includes all the core committers, who will 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 v5.16.3                                          2013-03-11                                         PERLDELTA(1)