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FreeBSD : xorg server -- Multiple vulnerabilities (8df49466-5664-11f0-943a-18c04d5ea3dc)

high Nessus Plugin ID 241127

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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 8df49466-5664-11f0-943a-18c04d5ea3dc advisory.

 The X.Org project reports:
 The Big Requests extension allows requests larger than the 16-bit length limit.
 It uses integers for the request length and checks for the size not to exceed the maxBigRequestSize limit, but does so after translating the length to integer by multiplying the given size in bytes by 4.
 In doing so, it might overflow the integer size limit before actually checking for the overflow, defeating the purpose of the test.

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/2025-June/062055.html

http://www.nessus.org/u?15b1cb65

Plugin Details

Severity: High

ID: 241127

File Name: freebsd_pkg_8df49466566411f0943a18c04d5ea3dc.nasl

Version: 1.1

Type: local

Published: 7/1/2025

Updated: 7/1/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.5

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2025-49176

CVSS v3

Risk Factor: High

Base Score: 7.3

Temporal Score: 6.4

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

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:xorg-nextserver, p-cpe:/a:freebsd:freebsd:xephyr, p-cpe:/a:freebsd:freebsd:xorg-server, p-cpe:/a:freebsd:freebsd:xwayland, p-cpe:/a:freebsd:freebsd:xorg-vfbserver, 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: 7/1/2025

Vulnerability Publication Date: 6/17/2025

Reference Information

CVE: CVE-2025-49176