Out-of-bounds Write Affecting perl-base package, versions <0:2.27-512.1.el10_0


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.54% (44th percentile)

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  • Snyk IDSNYK-RHEL10-PERLBASE-10182713
  • published19 May 2025
  • disclosed1 Jan 2024

Introduced: 1 Jan 2024

CVE-2024-56406  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade RHEL:10 perl-base to version 0:2.27-512.1.el10_0 or higher.
This issue was patched in RHSA-2025:7500.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perl-base package and not the perl-base package as distributed by RHEL. See How to fix? for RHEL:10 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