/ 
perl-5.41.8
⭐ Starred 2013
/ XS::Typemap
Security Advisories (2)
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-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

NAME

XS::Typemap - module to test the XS typemaps distributed with perl

SYNOPSIS

use XS::Typemap;

$output = T_IV( $input );
$output = T_PV( $input );
@output = T_ARRAY( @input );

DESCRIPTION

This module is used to test that the XS typemaps distributed with perl are working as advertised. A function is available for each typemap definition (eventually). In general each function takes a variable, processes it through the OUTPUT typemap and then returns it using the INPUT typemap.

A test script can then compare the input and output to make sure they are the expected values. When only an input or output function is provided the function will be named after the typemap entry and have either '_IN' or '_OUT' appended.

All the functions are exported. There is no reason not to do this since the entire purpose is for testing Perl. Namespace pollution will be limited to the test script.

NOTES

This module is for testing only and should not normally be installed.

AUTHOR

Tim Jenness <t.jenness@jach.hawaii.edu>

Copyright (C) 2001 Tim Jenness All Rights Reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.