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FreeBSD : libXpm -- Out-of-bounds read in xpmNextWord() (dea605e6-41c9-11f1-8455-901b0e13f1a0)

medium Nessus Plugin ID 310741

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 dea605e6-41c9-11f1-8455-901b0e13f1a0 advisory.

 The X.Org project reports:

 libXpm uses a number of internal helper functions to parse the XPM file format.
 One of these internal functions, xpmNextString(), checks for the NULL terminator when looking for the end of the current string but not when looking for the beginning of the next string.
 A small XPM file with a malformed color table definition may cause the function xpmNextWord(), called from xpmParseColors() following a call to xpmNextString(), to start past the actual end of the file, causing an out-of-bound read.


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://lists.x.org/archives/xorg-announce/2026-April/003690.html

http://www.nessus.org/u?463bc14a

Plugin Details

Severity: Medium

ID: 310741

File Name: freebsd_pkg_dea605e641c911f18455901b0e13f1a0.nasl

Version: 1.1

Type: Local

Published: 4/28/2026

Updated: 4/28/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

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

CVSS Score Source: CVE-2026-4367

CVSS v3

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 5.4

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

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

Vulnerability Information

CPE: cpe:/o:freebsd:freebsd, p-cpe:/a:freebsd:freebsd:libxpm

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/27/2026

Vulnerability Publication Date: 4/27/2026

Reference Information

CVE: CVE-2026-4367