/ 
perl-5.15.4
⭐ Starred 2013 / Porting::release_schedule
Security Advisories (20)
CVE-2015-8608 (2017-02-07)

The VDir::MapPathA and VDir::MapPathW functions in Perl 5.22 allow remote attackers to cause a denial of service (out-of-bounds read) and possibly execute arbitrary code via a crafted (1) drive letter or (2) pInName argument.

CVE-2025-40909 (2025-05-30)

Perl threads have a working directory race condition where file operations may target unintended paths. If a directory handle is open at thread creation, the process-wide current working directory is temporarily changed in order to clone that handle for the new thread, which is visible from any third (or more) thread already running. This may lead to unintended operations such as loading code or accessing files from unexpected locations, which a local attacker may be able to exploit. The bug was introduced in commit 11a11ecf4bea72b17d250cfb43c897be1341861e and released in Perl version 5.13.6

CVE-2012-5195 (2012-12-18)

Heap-based buffer overflow in the Perl_repeatcpy function in util.c in Perl 5.12.x before 5.12.5, 5.14.x before 5.14.3, and 5.15.x before 15.15.5 allows context-dependent attackers to cause a denial of service (memory consumption and crash) or possibly execute arbitrary code via the 'x' string repeat operator.

CVE-2016-2381 (2016-04-08)

Perl might allow context-dependent attackers to bypass the taint protection mechanism in a child process via duplicate environment variables in envp.

CVE-2016-1238 (2016-08-02)

(1) cpan/Archive-Tar/bin/ptar, (2) cpan/Archive-Tar/bin/ptardiff, (3) cpan/Archive-Tar/bin/ptargrep, (4) cpan/CPAN/scripts/cpan, (5) cpan/Digest-SHA/shasum, (6) cpan/Encode/bin/enc2xs, (7) cpan/Encode/bin/encguess, (8) cpan/Encode/bin/piconv, (9) cpan/Encode/bin/ucmlint, (10) cpan/Encode/bin/unidump, (11) cpan/ExtUtils-MakeMaker/bin/instmodsh, (12) cpan/IO-Compress/bin/zipdetails, (13) cpan/JSON-PP/bin/json_pp, (14) cpan/Test-Harness/bin/prove, (15) dist/ExtUtils-ParseXS/lib/ExtUtils/xsubpp, (16) dist/Module-CoreList/corelist, (17) ext/Pod-Html/bin/pod2html, (18) utils/c2ph.PL, (19) utils/h2ph.PL, (20) utils/h2xs.PL, (21) utils/libnetcfg.PL, (22) utils/perlbug.PL, (23) utils/perldoc.PL, (24) utils/perlivp.PL, and (25) utils/splain.PL in Perl 5.x before 5.22.3-RC2 and 5.24 before 5.24.1-RC2 do not properly remove . (period) characters from the end of the includes directory array, which might allow local users to gain privileges via a Trojan horse module under the current working directory.

CVE-2020-10543 (2020-06-05)

Perl before 5.30.3 on 32-bit platforms allows a heap-based buffer overflow because nested regular expression quantifiers have an integer overflow.

CVE-2018-18311 (2018-12-07)

Perl before 5.26.3 and 5.28.x before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations.

CVE-2023-47039 (2023-10-30)

Perl for Windows relies on the system path environment variable to find the shell (cmd.exe). When running an executable which uses Windows Perl interpreter, Perl attempts to find and execute cmd.exe within the operating system. However, due to path search order issues, Perl initially looks for cmd.exe in the current working directory. An attacker with limited privileges can exploit this behavior by placing cmd.exe in locations with weak permissions, such as C:\ProgramData. By doing so, when an administrator attempts to use this executable from these compromised locations, arbitrary code can be executed.

CVE-2023-47100

In Perl before 5.38.2, S_parse_uniprop_string in regcomp.c can write to unallocated space because a property name associated with a \p{...} regular expression construct is mishandled. The earliest affected version is 5.30.0.

CVE-2026-4176 (2026-03-29)

Perl versions from 5.9.4 before 5.40.4-RC1, from 5.41.0 before 5.42.2-RC1, from 5.43.0 before 5.43.9 contain a vulnerable version of Compress::Raw::Zlib. Compress::Raw::Zlib is included in the Perl package as a dual-life core module, and is vulnerable to CVE-2026-3381 due to a vendored version of zlib which has several vulnerabilities, including CVE-2026-27171. The bundled Compress::Raw::Zlib was updated to version 2.221 in Perl blead commit c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94.

CVE-2026-8376 (2026-05-25)

Perl versions through 5.43.10 have a heap buffer overflow when compiling regular expressions with a repeated fixed string on 32-bit builds. Perl_study_chunk in regcomp_study.c checked the size of the joined substring buffer in characters rather than bytes. For a quantified fixed substring with a large minimum count, the byte length mincount * l could overflow SSize_t, producing an undersized SvGROW allocation; the subsequent copy writes past the end of the buffer. A caller that compiles an attacker-controlled regular expression on a 32-bit perl build triggers a heap buffer overflow at compile time.

CVE-2020-12723 (2020-06-05)

regcomp.c in Perl before 5.30.3 allows a buffer overflow via a crafted regular expression because of recursive S_study_chunk calls.

CVE-2020-10878 (2020-06-05)

Perl before 5.30.3 has an integer overflow related to mishandling of a "PL_regkind[OP(n)] == NOTHING" situation. A crafted regular expression could lead to malformed bytecode with a possibility of instruction injection.

CVE-2018-6913 (2018-04-17)

Heap-based buffer overflow in the pack function in Perl before 5.26.2 allows context-dependent attackers to execute arbitrary code via a large item count.

CVE-2018-18314 (2018-12-07)

Perl before 5.26.3 has a buffer overflow via a crafted regular expression that triggers invalid write operations.

CVE-2018-18313 (2018-12-07)

Perl before 5.26.3 has a buffer over-read via a crafted regular expression that triggers disclosure of sensitive information from process memory.

CVE-2018-18312 (2018-12-05)

Perl before 5.26.3 and 5.28.0 before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations.

CVE-2015-8853 (2016-05-25)

The (1) S_reghop3, (2) S_reghop4, and (3) S_reghopmaybe3 functions in regexec.c in Perl before 5.24.0 allow context-dependent attackers to cause a denial of service (infinite loop) via crafted utf-8 data, as demonstrated by "a\x80."

CVE-2013-1667 (2013-03-14)

The rehash mechanism in Perl 5.8.2 through 5.16.x allows context-dependent attackers to cause a denial of service (memory consumption and crash) via a crafted hash key.

CVE-2013-7422 (2015-08-16)

Integer underflow in regcomp.c in Perl before 5.20, as used in Apple OS X before 10.10.5 and other products, allows context-dependent attackers to execute arbitrary code or cause a denial of service (application crash) via a long digit string associated with an invalid backreference within a regular expression.

STABLE RELEASE SCHEDULE

This schedule lists the projected or historical development and release schedules for the next, current and previous stable versions of Perl. Dates with all question marks will only be releases if deemed necessary by the Pumpking.

Perl 5.16

Code freezes (which happen in the 5.15.X series)

2011-12-20  5.15.6    Contentious changes freeze
2012-02-20  5.15.8    User-visible changes freeze
2012-03-20  5.15.9    Full code freeze

Release schedule (with release manager):

2012-04-01  5.16.0-RC0      Jesse Vincent?
...(interim RC releases)...
2012-05-16  5.16.0 (final)  Jesse Vincent

Perl 5.14

Release schedule (with release managers):

2011-05-14  5.14.0 (final)  Jesse Vincent
2011-06-16  5.14.1          Jesse Vincent
2011-09-14  5.14.2          Florian Ragwitz
2011-12-14  5.14.3          ??
????-??-??  5.14.4          ??

Perl 5.12

Release schedule (with release managers):

2010-04-12   5.12.0          Jesse Vincent
2010-05-16   5.12.1          Jesse Vincent
2010-09-06   5.12.2          Jesse Vincent
2011-01-21   5.12.3          Ricardo Signes
2011-06-20   5.12.4          Leon Brocard
????-??-??   5.12.5          ??

DEVELOPMENT RELEASE SCHEDULE

This schedule lists the release engineers for at least the next four months of releases of bleadperl. If there are fewer than four months listed as you make a release, it's important that you extend the schedule AND identify the next release engineer.

Before adding a release engineer, you must contact them and they must consent to ship the release.

When shipping a release, you should include the schedule for (at least) the next four releases. If a stable version of Perl is released, you should reset the version numbers to the next blead series.

Perl 5.15

Release schedule (with release managers and code freeze points):

2011-06-20  5.15.0          David Golden
2011-07-20  5.15.1          Zefram
2011-08-20  5.15.2          Ricardo Signes
2011-09-20  5.15.3          Stevan Little
2011-10-20  5.15.4          Florian Ragwitz
2011-11-20  5.15.5          Steve Hay
2011-12-20  5.15.6          Dave Rolsky (Contentious code freeze)
2012-01-20  5.15.7          Chris Williams
2012-02-20  5.15.8          Max Maischein (User-visible code freeze)
2012-03-20  5.15.9          Abigail (Full code freeze)
2012-04-20  5.17.0          Dave Cross
2012-05-20  5.17.1
2012-06-20  5.17.2
2012-07-20  5.17.3

VICTIMS

The following porters have all consented to do at least one release of bleadperl. If you can't do a release and can't find a substitute amongst this list, mail p5p.

(Please do not add any names to this list without prior consent of the Pumpking.)

Jesse Vincent <jesse@cpan.org> Leon Brocard <acme@astray.com> Yves Orton <demerphq@gmail.com> Ricardo Signes <rjbs@cpan.org> Steve Hay <steve.m.hay@googlemail.com> Ask Bjørn Hansen <ask@perl.org> David Golden <dagolden@cpan.org> Philippe Bruhat <book@cpan.org> Matt Trout <mst@shadowcat.co.uk> Florian Ragwitz <rafl@debian.org> Tatsuhiko Miyagawa <miyagawa@bulknews.net> Chris Williams <bingos@cpan.org> Zefram <zefram@fysh.org> Ævar Arnfjörð Bjarmason <avar@cpan.org> Stevan Little <stevan.little@iinteractive.com> Dave Rolsky <autarch@urth.org> Abigail <abigail@abigail.be> Max Maischein <corion@cpan.org> Dave Cross <dave@perlhacks.com>

Reticent victims

These folks have said that they'd be willing to release Perl but would prefer that others have the opportunity before they pitch in:

(none at this time)

AUTHOR

Jesse Vincent <jesse@cpan.org>