8.4

CVE-2024-56406

Medienbericht

Perl is vulnerable to a heap buffer overflow when transliterating non-ASCII bytes

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Perl ≫ Perl Version >= 5.33.1 < 5.38.4
Perl ≫ Perl Version >= 5.39.0 < 5.40.2
Perl ≫ Perl Version >= 5.41.0 <= 5.41.10
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.52% 0.404
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
134c704f-9b21-4f2e-91b3-4a467353bcc0 8.4 2.5 5.9
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-122 Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

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VulnDex Intel
Media Report
09.08.2025 11:36
https://github.com/Perl/perl5/commit/87f42aa0e0096e9a346c9672aa3a0bd3bef8c1dd.patch
Patch
https://metacpan.org/release/SHAY/perl-5.38.4/changes
Release Notes
https://metacpan.org/release/SHAY/perl-5.40.2/changes
Release Notes
http://www.openwall.com/lists/oss-security/2025/04/13/3
Mailing List
http://www.openwall.com/lists/oss-security/2025/04/13/4
Mailing List
http://www.openwall.com/lists/oss-security/2025/04/13/5
Mailing List