FreeBSD : Text::CSV_XS -- CWE-825 Expired Pointer Dereference (7ebfb0bf-44b4-11f1-8b82-3c7c3fba4204)

high Nessus Plugin ID 311485

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 7ebfb0bf-44b4-11f1-8b82-3c7c3fba4204 advisory.

H.Merijn Brand - Tux <[email protected]> reports:
Text::CSV_XS versions before 1.62 for Perl have a use-after-free when registered callbacks extend the Perl argument stack, which may enable type confusion or memory corruption.

The Parse, print, getline, and getline_all methods invoke registered callbacks (for example after_parse, before_print, or on_error) and cache the Perl argument stack pointer across the call. If a callback extends the argument stack enough to trigger a reallocation, the return value is written through the stale pointer into the freed buffer, and the caller reads the original $self argument as the return value instead.

Calling code that expects parsed data from getline_all receives the Text::CSV_XS object in its place, leading to logic errors or crashes.
Text::CSV_XS objects used without any registered callbacks are not affected.

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.

Plugin Details

Severity: High

ID: 311485

File Name: freebsd_pkg_7ebfb0bf44b411f18b823c7c3fba4204.nasl

Version: 1.1

Type: Local

Family: FreeBSD Local Security Checks

Published: 5/2/2026

Updated: 5/2/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-7111

CVSS v3

Risk Factor: High

Base Score: 8.4

Temporal Score: 7.3

Vector: CVSS:3.0/AV:L/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:p5-text-csv_xs, 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: 4/30/2026

Vulnerability Publication Date: 4/29/2026

Reference Information

CVE: CVE-2026-7111

Detections

Analytics