5 perl5244delta - what is new for perl v5.24.4
9 This document describes differences between the 5.24.3 release and the 5.24.4
12 If you are upgrading from an earlier release such as 5.24.2, first read
13 L<perl5243delta>, which describes differences between 5.24.2 and 5.24.3.
17 =head2 [CVE-2018-6797] heap-buffer-overflow (WRITE of size 1) in S_regatom (regcomp.c)
19 A crafted regular expression could cause a heap buffer write overflow, with
20 control over the bytes written.
21 L<[perl #132227]|https://rt.perl.org/Public/Bug/Display.html?id=132227>
23 =head2 [CVE-2018-6798] Heap-buffer-overflow in Perl__byte_dump_string (utf8.c)
25 Matching a crafted locale dependent regular expression could cause a heap
26 buffer read overflow and potentially information disclosure.
27 L<[perl #132063]|https://rt.perl.org/Public/Bug/Display.html?id=132063>
29 =head2 [CVE-2018-6913] heap-buffer-overflow in S_pack_rec
31 C<pack()> could cause a heap buffer write overflow with a large item count.
32 L<[perl #131844]|https://rt.perl.org/Public/Bug/Display.html?id=131844>
34 =head2 Assertion failure in Perl__core_swash_init (utf8.c)
36 Control characters in a supposed Unicode property name could cause perl to
37 crash. This has been fixed.
38 L<[perl #132055]|https://rt.perl.org/Public/Bug/Display.html?id=132055>
39 L<[perl #132553]|https://rt.perl.org/Public/Bug/Display.html?id=132553>
40 L<[perl #132658]|https://rt.perl.org/Public/Bug/Display.html?id=132658>
42 =head1 Incompatible Changes
44 There are no changes intentionally incompatible with 5.24.3. If any exist,
45 they are bugs, and we request that you submit a report. See L</Reporting
48 =head1 Modules and Pragmata
50 =head2 Updated Modules and Pragmata
56 L<Module::CoreList> has been upgraded from version 5.20170922_24 to 5.20180414_24.
60 =head1 Selected Bug Fixes
66 The C<readpipe()> built-in function now checks at compile time that it has only
67 one parameter expression, and puts it in scalar context, thus ensuring that it
68 doesn't corrupt the stack at runtime.
69 L<[perl #4574]|https://rt.perl.org/Public/Bug/Display.html?id=4574>
73 =head1 Acknowledgements
75 Perl 5.24.4 represents approximately 7 months of development since Perl 5.24.3
76 and contains approximately 2,400 lines of changes across 49 files from 12
79 Excluding auto-generated files, documentation and release tools, there were
80 approximately 1,300 lines of changes to 12 .pm, .t, .c and .h files.
82 Perl continues to flourish into its third decade thanks to a vibrant community
83 of users and developers. The following people are known to have contributed
84 the improvements that became Perl 5.24.4:
86 Abigail, Chris 'BinGOs' Williams, John SJ Anderson, Karen Etheridge, Karl
87 Williamson, Renee Baecker, Sawyer X, Steve Hay, Todd Rinaldo, Tony Cook, Yves
90 The list above is almost certainly incomplete as it is automatically generated
91 from version control history. In particular, it does not include the names of
92 the (very much appreciated) contributors who reported issues to the Perl bug
95 Many of the changes included in this version originated in the CPAN modules
96 included in Perl's core. We're grateful to the entire CPAN community for
97 helping Perl to flourish.
99 For a more complete list of all of Perl's historical contributors, please see
100 the F<AUTHORS> file in the Perl source distribution.
102 =head1 Reporting Bugs
104 If you find what you think is a bug, you might check the articles recently
105 posted to the comp.lang.perl.misc newsgroup and the perl bug database at
106 L<https://rt.perl.org/> . There may also be information at
107 L<http://www.perl.org/> , the Perl Home Page.
109 If you believe you have an unreported bug, please run the L<perlbug> program
110 included with your release. Be sure to trim your bug down to a tiny but
111 sufficient test case. Your bug report, along with the output of C<perl -V>,
112 will be sent off to perlbug@perl.org to be analysed by the Perl porting team.
114 If the bug you are reporting has security implications which make it
115 inappropriate to send to a publicly archived mailing list, then see
116 L<perlsec/SECURITY VULNERABILITY CONTACT INFORMATION>
117 for details of how to report the issue.
121 The F<Changes> file for an explanation of how to view exhaustive details on
124 The F<INSTALL> file for how to build Perl.
126 The F<README> file for general stuff.
128 The F<Artistic> and F<Copying> files for copyright information.