CVE-2024-56406 Affecting perl package, versions <5.38.3-r1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.02% (3rd percentile)

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  • Snyk IDSNYK-ALPINE320-PERL-9689901
  • published14 Apr 2025
  • disclosed13 Apr 2025

Introduced: 13 Apr 2025

NewCVE-2024-56406  (opens in a new tab)

How to fix?

Upgrade Alpine:3.20 perl to version 5.38.3-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perl package and not the perl package as distributed by Alpine. See How to fix? for Alpine:3.20 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1