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FreeBSD : Perl -- heap buffer overflow when transliterating non-ASCII bytes (a380f43e-19e5-11f0-9568-b42e991fc52e)

critical Nessus Plugin ID 234497

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the a380f43e-19e5-11f0-9568-b42e991fc52e advisory.

 9b29abf9-4ab0-4765-b253-1875cd9b441e reports:
 A heap buffer overflow vulnerability was discovered in Perl.
 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.

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://nvd.nist.gov/vuln/detail/CVE-2024-56406

http://www.nessus.org/u?391a41b1

Plugin Details

Severity: Critical

ID: 234497

File Name: freebsd_pkg_a380f43e19e511f09568b42e991fc52e.nasl

Version: 1.1

Type: local

Published: 4/16/2025

Updated: 4/16/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2024-56406

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:40, p-cpe:/a:freebsd:freebsd:perl5-devel, p-cpe:/a:freebsd:freebsd:36, p-cpe:/a:freebsd:freebsd:38, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 4/15/2025

Vulnerability Publication Date: 4/13/2025

Reference Information

CVE: CVE-2024-56406