/ 
perl-5.36.0
⭐ Starred 2013 / Test2::Event::Generic
Security Advisories (9)
CVE-2024-56406 (2025-04-13)

A heap buffer overflow vulnerability was discovered in Perl. Release branches 5.34, 5.36, 5.38 and 5.40 are affected, including development versions from 5.33.1 through 5.41.10. When there are non-ASCII bytes in the left-hand-side of the `tr` operator, `S_do_trans_invmap` can overflow the destination pointer `d`.    $ perl -e '$_ = "\x{FF}" x 1000000; tr/\xFF/\x{100}/;'    Segmentation fault (core dumped) It is believed that this vulnerability can enable Denial of Service and possibly Code Execution attacks on platforms that lack sufficient defenses.

CVE-2023-47038 (2023-10-30)

A crafted regular expression when compiled by perl 5.30.0 through 5.38.0 can cause a one attacker controlled byte buffer overflow in a heap allocated buffer

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-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-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-2026-13221 (2026-07-13)

Perl versions through 5.43.9 produce silently incorrect regular expression matches when an alternation of more than 65535 fixed string branches is compiled into a trie in Perl_study_chunk. When such branches are combined into a trie, the delta between the first branch and the shared tail is stored in a 16-bit field. A branch count above 65535 overflows the field, and the trie's match decision table is truncated with no warning or error. A pattern of this shape produces false positive matches (matching strings it should not) and false negative matches (failing to match strings it should). When such a pattern gates an access or filtering decision, the result is wrong.

CVE-2026-57432 (2026-07-13)

Perl versions through 5.43.10 have an integer overflow in S_measure_struct leading to an out-of-bounds heap read in pack and unpack. S_measure_struct adds each item's size times its repeat count to a running total with no overflow check, so a large repeat count in a pack or unpack template wraps the signed SSize_t total negative. The @, X, and x position codes then guard their moves with a signed length comparison that passes when the length is negative, advancing the buffer pointer out of bounds. A template derived from untrusted input can read heap memory past the buffer and return it to the caller.

NAME

Test2::Event::Generic - Generic event type.

DESCRIPTION

This is a generic event that lets you customize all fields in the event API. This is useful if you have need for a custom event that does not make sense as a published reusable event subclass.

SYNOPSIS

use Test2::API qw/context/;

sub send_custom_fail {
    my $ctx = shift;

    $ctx->send_event('Generic', causes_fail => 1, summary => 'The sky is falling');

    $ctx->release;
}

send_custom_fail();

METHODS

$e->facet_data($data)
$data = $e->facet_data

Get or set the facet data (see Test2::Event). If no facet_data is set then Test2::Event->facet_data will be called to produce facets from the other data.

$e->callback($hub)

Call the custom callback if one is set, otherwise this does nothing.

$e->set_callback(sub { ... })

Set the custom callback. The custom callback must be a coderef. The first argument to your callback will be the event itself, the second will be the Test2::Event::Hub that is using the callback.

$bool = $e->causes_fail
$e->set_causes_fail($bool)

Get/Set the causes_fail attribute. This defaults to 0.

$bool = $e->diagnostics
$e->set_diagnostics($bool)

Get/Set the diagnostics attribute. This defaults to 0.

$bool_or_undef = $e->global
@bool_or_empty = $e->global
$e->set_global($bool_or_undef)

Get/Set the diagnostics attribute. This defaults to an empty list which is undef in scalar context.

$bool = $e->increments_count
$e->set_increments_count($bool)

Get/Set the increments_count attribute. This defaults to 0.

$bool = $e->no_display
$e->set_no_display($bool)

Get/Set the no_display attribute. This defaults to 0.

@plan = $e->sets_plan

Get the plan if this event sets one. The plan is a list of up to 3 items: ($count, $directive, $reason). $count must be defined, the others may be undef, or may not exist at all.

$e->set_sets_plan(\@plan)

Set the plan. You must pass in an arrayref with up to 3 elements.

$summary = $e->summary
$e->set_summary($summary_or_undef)

Get/Set the summary. This will default to the event package 'Test2::Event::Generic'. You can set it to any value. Setting this to undef will reset it to the default.

$int_or_undef = $e->terminate
@int_or_empty = $e->terminate
$e->set_terminate($int_or_undef)

This will get/set the terminate attribute. This defaults to undef in scalar context, or an empty list in list context. Setting this to undef will clear it completely. This must be set to a positive integer (0 or larger).

SOURCE

The source code repository for Test2 can be found at http://github.com/Test-More/test-more/.

MAINTAINERS

Chad Granum <exodist@cpan.org>

AUTHORS

Chad Granum <exodist@cpan.org>

COPYRIGHT

Copyright 2020 Chad Granum <exodist@cpan.org>.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

See http://dev.perl.org/licenses/