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perl-5.40.1
⭐ Starred 2013 / Unicode::Collate::CJK::Korean
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

Unicode::Collate::CJK::Korean - weighting CJK Unified Ideographs for Unicode::Collate

SYNOPSIS

use Unicode::Collate;
use Unicode::Collate::CJK::Korean;

my $collator = Unicode::Collate->new(
    overrideCJK => \&Unicode::Collate::CJK::Korean::weightKorean
);

DESCRIPTION

Unicode::Collate::CJK::Korean provides weightKorean(), that is adequate for overrideCJK of Unicode::Collate and makes tailoring of CJK Unified Ideographs in the order of CLDR's Korean ordering.

SEE ALSO

CLDR - Unicode Common Locale Data Repository

http://cldr.unicode.org/

Unicode Locale Data Markup Language (LDML) - UTS #35

http://www.unicode.org/reports/tr35/

Unicode::Collate
Unicode::Collate::Locale