ALT-PU-2025-7763-1
Closed vulnerabilities
Published: 2024-12-18
BDU:2025-04857
Уязвимость функции S_do_trans_invmap() интерпретатора языка программирования Perl, позволяющая нарушителю вызвать отказ в обслуживании
Severity: HIGH (7.3)
Vector: AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
References:
Published: 2025-04-13
Modified: 2025-04-30
Modified: 2025-04-30
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.
References:
- 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