/ 
perl-5.43.8
⭐ Starred 2013 / Amiga::ARexx
Security Advisories (4)
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-2026-13221 (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

Amiga::ARexx - Perl extension for ARexx support

ABSTRACT

This a perl class / module to enable you to use ARexx with your perlscript. Creating a function host or executing scripts in other hosts. The API is loosley modeled on the python arexx module supplied by with AmigaOS4.1

SYNOPSIS

# Create a new host

use Amiga::ARexx;
my $host = Amiga::ARexx->new('HostName' => "PERLREXX" );

# Wait for and process rexxcommands

my $alive = 1;

while ($alive)
{
    $host->wait();
    my $msg = $host->getmsg();
    while($msg)
    {
        my $rc = 0;
        my $rc2 = 0;
        my $result = "";

        print $msg->message . "\n";
        given($msg->message)
        {
            when ("QUIT")
            {
                $alive = 0;
                $result = "quitting!";
            }
            default {
                $rc = 10;
                $rc2 = 22;
            }
        }
        $msg->reply($rc,$rc2,$result);

        $msg = $host->getmsg();
    }

}

# Send a command to a host

my $port = "SOMEHOST";
my $command = "SOMECOMMAND";
my ($rc,$rc2,$result) = Amiga::ARexx->DoRexx($port,$command);

DESCRIPTION

The interface to the arexx.class in entirely encapsulated within the perl class, there is no need to access the low level methods directly and they are not exported by default.

Amiga::ARexx METHODS

new

my $host = Amiga::ARexx->new( HostName => "PERLREXX");

Create an ARexx host for your script / program.

HostName

The HostName for the hosts command port. This is madatory, the program will fail if not provided.

wait

$host->wait('TimeOut' => $timeoutinusecs );

Wait for a message to arive at the port.

TimeOut

optional time out in microseconds.

getmsg

$msg = $host->getmsg();

Fetch an ARexx message from the host port. Returns an objrct of class Amiga::ARexx::Msg

signal

$signal = $host->signal()

Retrieve the signal mask for the host port for use with Amiga::Exec Wait()

DoRexx

($rc,$rc2,$result) = DoRexx("desthost","commandstring");

Send the "commandstring" to host "desthost" for execution. Commandstring might be a specific command or scriptname.

Amiga::ARexx::Msg METHODS

message

$m = $msg->message();

Retrieve the message "command" as a string;

reply

$msg->reply($rc,$rc2,$result)

Reply the message returning the results of any command. Set $rc = 0 for success and $result to the result string if appropriate.

Set $rc to non zero for error and $rc2 for an additional error code if appropriate.

setvar

$msg->setvar($varname,$value)

Set a variable in the language context sending this message.

getvar

$value = $msg->getvar($varname)

Get the value of a variable in the language context sending this message.

EXPORT

None by default.

Exportable constants

None

AUTHOR

Andy Broad <andy@broad.ology.org.uk>

COPYRIGHT AND LICENSE

Copyright (C) 2013 by Andy Broad.