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perl-5.43.9
⭐ Starred 2013 / Pod::Functions
Security Advisories (3)
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.

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.

NAME

Pod::Functions - Group Perl's functions a la perlfunc.pod

SYNOPSIS

use Pod::Functions;

my @misc_ops = @{ $Kinds{ 'Misc' } };
my $misc_dsc = $Type_Description{ 'Misc' };

or

perl /path/to/lib/Pod/Functions.pm

This will print a grouped list of Perl's functions, like the "Perl Functions by Category" in perlfunc section.

DESCRIPTION

It exports the following variables:

%Kinds

This holds a hash-of-lists. Each list contains the functions in the category the key denotes.

%Type

In this hash each key represents a function and the value is the category. The category can be a comma separated list.

%Flavor

In this hash each key represents a function and the value is a short description of that function.

%Type_Description

In this hash each key represents a category of functions and the value is a short description of that category.

@Type_Order

This list of categories is used to produce the same order as the "Perl Functions by Category" in perlfunc section.