perl5244delta(1)

1PERL5244DELTA(1)       Perl Programmers Reference Guide       PERL5244DELTA(1)
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NAME

6       perl5244delta - what is new for perl v5.24.4
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DESCRIPTION

9       This document describes differences between the 5.24.3 release and the
10       5.24.4 release.
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12       If you are upgrading from an earlier release such as 5.24.2, first read
13       perl5243delta, which describes differences between 5.24.2 and 5.24.3.
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Security

16   [CVE-2018-6797] heap-buffer-overflow (WRITE of size 1) in S_regatom
17       (regcomp.c)
18       A crafted regular expression could cause a heap buffer write overflow,
19       with control over the bytes written.  [GH #16185]
20       <https://github.com/Perl/perl5/issues/16185>
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22   [CVE-2018-6798] Heap-buffer-overflow in Perl__byte_dump_string (utf8.c)
23       Matching a crafted locale dependent regular expression could cause a
24       heap buffer read overflow and potentially information disclosure.  [GH
25       #16143] <https://github.com/Perl/perl5/issues/16143>
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27   [CVE-2018-6913] heap-buffer-overflow in S_pack_rec
28       pack() could cause a heap buffer write overflow with a large item
29       count.  [GH #16098] <https://github.com/Perl/perl5/issues/16098>
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31   Assertion failure in Perl__core_swash_init (utf8.c)
32       Control characters in a supposed Unicode property name could cause perl
33       to crash.  This has been fixed.  [perl #132055]
34       <https://rt.perl.org/Public/Bug/Display.html?id=132055> [perl #132553]
35       <https://rt.perl.org/Public/Bug/Display.html?id=132553> [perl #132658]
36       <https://rt.perl.org/Public/Bug/Display.html?id=132658>
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Incompatible Changes

39       There are no changes intentionally incompatible with 5.24.3.  If any
40       exist, they are bugs, and we request that you submit a report.  See
41       "Reporting Bugs" below.
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Modules and Pragmata

44   Updated Modules and Pragmata
45       •   Module::CoreList has been upgraded from version 5.20170922_24 to
46           5.20180414_24.
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Selected Bug Fixes

49       •   The readpipe() built-in function now checks at compile time that it
50           has only one parameter expression, and puts it in scalar context,
51           thus ensuring that it doesn't corrupt the stack at runtime.  [GH
52           #2793] <https://github.com/Perl/perl5/issues/2793>
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Acknowledgements

55       Perl 5.24.4 represents approximately 7 months of development since Perl
56       5.24.3 and contains approximately 2,400 lines of changes across 49
57       files from 12 authors.
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59       Excluding auto-generated files, documentation and release tools, there
60       were approximately 1,300 lines of changes to 12 .pm, .t, .c and .h
61       files.
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63       Perl continues to flourish into its third decade thanks to a vibrant
64       community of users and developers.  The following people are known to
65       have contributed the improvements that became Perl 5.24.4:
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67       Abigail, Chris 'BinGOs' Williams, John SJ Anderson, Karen Etheridge,
68       Karl Williamson, Renee Baecker, Sawyer X, Steve Hay, Todd Rinaldo, Tony
69       Cook, Yves Orton, Zefram.
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71       The list above is almost certainly incomplete as it is automatically
72       generated from version control history.  In particular, it does not
73       include the names of the (very much appreciated) contributors who
74       reported issues to the Perl bug tracker.
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76       Many of the changes included in this version originated in the CPAN
77       modules included in Perl's core.  We're grateful to the entire CPAN
78       community for helping Perl to flourish.
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80       For a more complete list of all of Perl's historical contributors,
81       please see the AUTHORS file in the Perl source distribution.
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Reporting Bugs

84       If you find what you think is a bug, you might check the articles
85       recently posted to the comp.lang.perl.misc newsgroup and the perl bug
86       database at <https://rt.perl.org/> .  There may also be information at
87       <http://www.perl.org/> , the Perl Home Page.
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89       If you believe you have an unreported bug, please run the perlbug
90       program included with your release.  Be sure to trim your bug down to a
91       tiny but sufficient test case.  Your bug report, along with the output
92       of "perl -V", will be sent off to perlbug@perl.org to be analysed by
93       the Perl porting team.
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95       If the bug you are reporting has security implications which make it
96       inappropriate to send to a publicly archived mailing list, then see
97       "SECURITY VULNERABILITY CONTACT INFORMATION" in perlsec for details of
98       how to report the issue.
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