1PERL5143DELTA(1) Perl Programmers Reference Guide PERL5143DELTA(1)
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6 perl5143delta - what is new for perl v5.14.3
7
9 This document describes differences between the 5.14.2 release and the
10 5.14.3 release.
11 If you are upgrading from an earlier release such as 5.12.0, first read
13 perl5140delta, which describes differences between 5.12.0 and 5.14.0.
14
16 No changes since 5.14.0.
17
19 "Digest" unsafe use of eval (CVE-2011-3597)
20 The "Digest->new()" function did not properly sanitize input before
21 using it in an eval() call, which could lead to the injection of
22 arbitrary Perl code.
23 In order to exploit this flaw, the attacker would need to be able to
25 set the algorithm name used, or be able to execute arbitrary Perl code
26 already.
27 This problem has been fixed.
29 Heap buffer overrun in 'x' string repeat operator (CVE-2012-5195)
31 Poorly written perl code that allows an attacker to specify the count
32 to perl's 'x' string repeat operator can already cause a memory
33 exhaustion denial-of-service attack. A flaw in versions of perl before
34 5.15.5 can escalate that into a heap buffer overrun; coupled with
35 versions of glibc before 2.16, it possibly allows the execution of
36 arbitrary code.
37 This problem has been fixed.
39
41 There are no changes intentionally incompatible with 5.14.0. If any
42 exist, they are bugs and reports are welcome.
43
45 There have been no deprecations since 5.14.0.
46
48 New Modules and Pragmata
49 None
50 Updated Modules and Pragmata
52 · PerlIO::scalar was updated to fix a bug in which opening a
53 filehandle to a glob copy caused assertion failures (under
54 debugging) or hangs or other erratic behaviour without debugging.
55 · ODBM_File and NDBM_File were updated to allow building on GNU/Hurd.
57 · IPC::Open3 has been updated to fix a regression introduced in perl
59 5.12, which broke "IPC::Open3::open3($in, $out, $err, '-')". [perl
60 #95748]
61 · Digest has been upgraded from version 1.16 to 1.16_01.
63 See "Security".
65 · Module::CoreList has been updated to version 2.49_04 to add data
67 for this release.
68 Removed Modules and Pragmata
70 None
71
73 New Documentation
74 None
75 Changes to Existing Documentation
77 perlcheat
78 · perlcheat was updated to 5.14.
80
82 · h2ph was updated to search correctly gcc include directories on
83 platforms such as Debian with multi-architecture support.
84 · In Configure, the test for procselfexe was refactored into a loop.
86
88 New Platforms
89 None
90 Discontinued Platforms
92 None
93 Platform-Specific Notes
95 FreeBSD
96 The FreeBSD hints file was corrected to be compatible with FreeBSD
97 10.0.
98 Solaris and NetBSD
100 Configure was updated for "procselfexe" support on Solaris and
101 NetBSD.
102 HP-UX
104 README.hpux was updated to note the existence of a broken header in
105 HP-UX 11.00.
106 Linux
108 libutil is no longer used when compiling on Linux platforms, which
109 avoids warnings being emitted.
110 The system gcc (rather than any other gcc which might be in the
112 compiling user's path) is now used when searching for libraries
113 such as "-lm".
114 Mac OS X
116 The locale tests were updated to reflect the behaviour of locales
117 in Mountain Lion.
118 GNU/Hurd
120 Various build and test fixes were included for GNU/Hurd.
121 LFS support was enabled in GNU/Hurd.
123 NetBSD
125 The NetBSD hints file was corrected to be compatible with NetBSD
126 6.*
127
129 · A regression has been fixed that was introduced in 5.14, in "/i"
130 regular expression matching, in which a match improperly fails if
131 the pattern is in UTF-8, the target string is not, and a Latin-1
132 character precedes a character in the string that should match the
133 pattern. [perl #101710]
134 · In case-insensitive regular expression pattern matching, no longer
136 on UTF-8 encoded strings does the scan for the start of match only
137 look at the first possible position. This caused matches such as
138 ""f\x{FB00}" =~ /ff/i" to fail.
139 · The sitecustomize support was made relocatableinc aware, so that
141 -Dusesitecustomize and -Duserelocatableinc may be used together.
142 · The smartmatch operator ("~~") was changed so that the right-hand
144 side takes precedence during "Any ~~ Object" operations.
145 · A bug has been fixed in the tainting support, in which an "index()"
147 operation on a tainted constant would cause all other constants to
148 become tainted. [perl #64804]
149 · A regression has been fixed that was introduced in perl 5.12,
151 whereby tainting errors were not correctly propagated through
152 "die()". [perl #111654]
153 · A regression has been fixed that was introduced in perl 5.14, in
155 which "/[[:lower:]]/i" and "/[[:upper:]]/i" no longer matched the
156 opposite case. [perl #101970]
157
159 Perl 5.14.3 represents approximately 12 months of development since
160 Perl 5.14.2 and contains approximately 2,300 lines of changes across 64
161 files from 22 authors.
162 Perl continues to flourish into its third decade thanks to a vibrant
164 community of users and developers. The following people are known to
165 have contributed the improvements that became Perl 5.14.3:
166 Abigail, Andy Dougherty, Carl Hayter, Chris 'BinGOs' Williams, Dave
168 Rolsky, David Mitchell, Dominic Hargreaves, Father Chrysostomos,
169 Florian Ragwitz, H.Merijn Brand, Jilles Tjoelker, Karl Williamson, Leon
170 Timmermans, Michael G Schwern, Nicholas Clark, Niko Tyni, Pino Toscano,
171 Ricardo Signes, Salvador Fandin~o, Samuel Thibault, Steve Hay, Tony
172 Cook.
173 The list above is almost certainly incomplete as it is automatically
175 generated from version control history. In particular, it does not
176 include the names of the (very much appreciated) contributors who
177 reported issues to the Perl bug tracker.
178 Many of the changes included in this version originated in the CPAN
180 modules included in Perl's core. We're grateful to the entire CPAN
181 community for helping Perl to flourish.
182 For a more complete list of all of Perl's historical contributors,
184 please see the AUTHORS file in the Perl source distribution.
185
187 If you find what you think is a bug, you might check the articles
188 recently posted to the comp.lang.perl.misc newsgroup and the perl bug
189 database at http://rt.perl.org/perlbug/ . There may also be
190 information at http://www.perl.org/ , the Perl Home Page.
191 If you believe you have an unreported bug, please run the perlbug
193 program included with your release. Be sure to trim your bug down to a
194 tiny but sufficient test case. Your bug report, along with the output
195 of "perl -V", will be sent off to perlbug@perl.org to be analysed by
196 the Perl porting team.
197 If the bug you are reporting has security implications, which make it
199 inappropriate to send to a publicly archived mailing list, then please
200 send it to perl5-security-report@perl.org. This points to a closed
201 subscription unarchived mailing list, which includes all the core
202 committers, who be able to help assess the impact of issues, figure out
203 a resolution, and help co-ordinate the release of patches to mitigate
204 or fix the problem across all platforms on which Perl is supported.
205 Please only use this address for security issues in the Perl core, not
206 for modules independently distributed on CPAN.
207
209 The Changes file for an explanation of how to view exhaustive details
210 on what changed.
211 The INSTALL file for how to build Perl.
213 The README file for general stuff.
215 The Artistic and Copying files for copyright information.
217perl v5.30.2 2020-03-27 PERL5143DELTA(1)