CVE-2024-56406

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.

The following products are affected by CVE-2024-56406 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2024-56406.

URL	Resource
http://www.openwall.com/lists/oss-security/2025/04/13/3
http://www.openwall.com/lists/oss-security/2025/04/13/4
http://www.openwall.com/lists/oss-security/2025/04/13/5
https://github.com/Perl/perl5/commit/87f42aa0e0096e9a346c9672aa3a0bd3bef8c1dd.patch
https://metacpan.org/release/SHAY/perl-5.38.4/changes
https://metacpan.org/release/SHAY/perl-5.40.2/changes
https://nvd.nist.gov/vuln/detail/CVE-2024-56406
https://www.cve.org/CVERecord?id=CVE-2024-56406