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database/perl/lib/pods/perl5143delta.pod

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+=encoding utf8
+
+=head1 NAME
+
+perl5143delta - what is new for perl v5.14.3
+
+=head1 DESCRIPTION
+
+This document describes differences between the 5.14.2 release and
+the 5.14.3 release.
+
+If you are upgrading from an earlier release such as 5.12.0, first read
+L<perl5140delta>, which describes differences between 5.12.0 and
+5.14.0.
+
+=head1 Core Enhancements
+
+No changes since 5.14.0.
+
+=head1 Security
+
+=head2 C<Digest> unsafe use of eval (CVE-2011-3597)
+
+The C<Digest-E<gt>new()> function did not properly sanitize input before
+using it in an eval() call, which could lead to the injection of arbitrary
+Perl code.
+
+In order to exploit this flaw, the attacker would need to be able to set
+the algorithm name used, or be able to execute arbitrary Perl code already.
+
+This problem has been fixed.
+
+=head2 Heap buffer overrun in 'x' string repeat operator (CVE-2012-5195)
+
+Poorly written perl code that allows an attacker to specify the count to
+perl's 'x' string repeat operator can already cause a memory exhaustion
+denial-of-service attack. A flaw in versions of perl before 5.15.5 can
+escalate that into a heap buffer overrun; coupled with versions of glibc
+before 2.16, it possibly allows the execution of arbitrary code.
+
+This problem has been fixed.
+
+=head1 Incompatible Changes
+
+There are no changes intentionally incompatible with 5.14.0. If any
+exist, they are bugs and reports are welcome.
+
+=head1 Deprecations
+
+There have been no deprecations since 5.14.0.
+
+=head1 Modules and Pragmata
+
+=head2 New Modules and Pragmata
+
+None
+
+=head2 Updated Modules and Pragmata
+
+=over 4
+
+=item *
+
+L<PerlIO::scalar> was updated to fix a bug in which opening a filehandle to
+a glob copy caused assertion failures (under debugging) or hangs or other
+erratic behaviour without debugging.
+
+=item *
+
+L<ODBM_File> and L<NDBM_File> were updated to allow building on GNU/Hurd.
+
+=item *
+
+L<IPC::Open3> has been updated to fix a regression introduced in perl
+5.12, which broke C<IPC::Open3::open3($in, $out, $err, '-')>.
+[perl #95748]
+
+=item *
+
+L<Digest> has been upgraded from version 1.16 to 1.16_01.
+
+See L</Security>.
+
+=item *
+
+L<Module::CoreList> has been updated to version 2.49_04 to add data for
+this release.
+
+=back
+
+=head2 Removed Modules and Pragmata
+
+None
+
+=head1 Documentation
+
+=head2 New Documentation
+
+None
+
+=head2 Changes to Existing Documentation
+
+=head3 L<perlcheat>
+
+=over 4
+
+=item *
+
+L<perlcheat> was updated to 5.14.
+
+=back
+
+=head1 Configuration and Compilation
+
+=over 4
+
+=item *
+
+h2ph was updated to search correctly gcc include directories on platforms
+such as Debian with multi-architecture support.
+
+=item *
+
+In Configure, the test for procselfexe was refactored into a loop.
+
+=back
+
+=head1 Platform Support
+
+=head2 New Platforms
+
+None
+
+=head2 Discontinued Platforms
+
+None
+
+=head2 Platform-Specific Notes
+
+=over 4
+
+=item FreeBSD
+
+The FreeBSD hints file was corrected to be compatible with FreeBSD 10.0.
+
+=item Solaris and NetBSD
+
+Configure was updated for "procselfexe" support on Solaris and NetBSD.
+
+=item HP-UX
+
+README.hpux was updated to note the existence of a broken header in
+HP-UX 11.00.
+
+=item Linux
+
+libutil is no longer used when compiling on Linux platforms, which avoids
+warnings being emitted.
+
+The system gcc (rather than any other gcc which might be in the compiling
+user's path) is now used when searching for libraries such as C<-lm>.
+
+=item Mac OS X
+
+The locale tests were updated to reflect the behaviour of locales in
+Mountain Lion.
+
+=item GNU/Hurd
+
+Various build and test fixes were included for GNU/Hurd.
+
+LFS support was enabled in GNU/Hurd.
+
+=item NetBSD
+
+The NetBSD hints file was corrected to be compatible with NetBSD 6.*
+
+=back
+
+=head1 Bug Fixes
+
+=over 4
+
+=item *
+
+A regression has been fixed that was introduced in 5.14, in C</i>
+regular expression matching, in which a match improperly fails if the
+pattern is in UTF-8, the target string is not, and a Latin-1 character
+precedes a character in the string that should match the pattern.  [perl
+#101710]
+
+=item *
+
+In case-insensitive regular expression pattern matching, no longer on
+UTF-8 encoded strings does the scan for the start of match only look at
+the first possible position.  This caused matches such as
+C<"f\x{FB00}" =~ /ff/i> to fail.
+
+=item *
+
+The sitecustomize support was made relocatableinc aware, so that
+-Dusesitecustomize and -Duserelocatableinc may be used together.
+
+=item *
+
+The smartmatch operator (C<~~>) was changed so that the right-hand side
+takes precedence during C<Any ~~ Object> operations.
+
+=item *
+
+A bug has been fixed in the tainting support, in which an C<index()>
+operation on a tainted constant would cause all other constants to become
+tainted.  [perl #64804]
+
+=item *
+
+A regression has been fixed that was introduced in perl 5.12, whereby
+tainting errors were not correctly propagated through C<die()>.
+[perl #111654]
+
+=item *
+
+A regression has been fixed that was introduced in perl 5.14, in which
+C</[[:lower:]]/i> and C</[[:upper:]]/i> no longer matched the opposite case.
+[perl #101970]
+
+=back
+
+=head1 Acknowledgements
+
+Perl 5.14.3 represents approximately 12 months of development since Perl 5.14.2
+and contains approximately 2,300 lines of changes across 64 files from 22
+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 5.14.3:
+
+Abigail, Andy Dougherty, Carl Hayter, Chris 'BinGOs' Williams, Dave Rolsky,
+David Mitchell, Dominic Hargreaves, Father Chrysostomos, Florian Ragwitz,
+H.Merijn Brand, Jilles Tjoelker, Karl Williamson, Leon Timmermans, Michael G
+Schwern, Nicholas Clark, Niko Tyni, Pino Toscano, Ricardo Signes, Salvador
+Fandiño, Samuel Thibault, Steve Hay, Tony Cook.
+
+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.
+
+Many of the changes included in this version originated in the CPAN modules
+included in Perl's core. We're grateful to the entire CPAN community for
+helping Perl to flourish.
+
+For a more complete list of all of Perl's historical contributors, please see
+the F<AUTHORS> file in the Perl source distribution.
+
+=head1 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 L<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 C<perl -V>, will be sent off to perlbug@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@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.
+
+=head1 SEE ALSO
+
+The F<Changes> file for an explanation of how to view exhaustive details
+on what changed.
+
+The F<INSTALL> file for how to build Perl.
+
+The F<README> file for general stuff.
+
+The F<Artistic> and F<Copying> files for copyright information.
+
+=cut