/ 
perl-5.37.10
⭐ Starred 2013
/ Win32CORE
Security Advisories (2)
CVE-2024-56406 (2025-04-13)

A heap buffer overflow vulnerability was discovered in Perl. 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

Win32CORE - Win32 CORE function stubs

DESCRIPTION

This library provides stubs for the functions marked as [CORE] in Win32. See that document for usage information. When any of these functions are called, the full Win32 module is loaded automatically. It is preferred that callers of these functions explicitly use Win32;.

HISTORY

Win32CORE was created to provide on cygwin those Win32:: functions that for regular win32 builds were provided by default in perl. In cygwin perl releases prior to 5.8.6, this module was standalone and had to be explicitly used. In 5.8.6 and later, it was statically linked into cygwin perl so this would no longer be necessary.

As of perl 5.9.5/Win32 0.27, these functions have been moved into the Win32 module. Win32CORE provides stubs for each of the former CORE Win32:: functions that internally just load the Win32 module and call it's version, and Win32CORE is statically linked to perl for both cygwin and regular win32 builds. This will permit these functions to be updated in the CPAN Win32 module independently of updating perl.