FreeBSD : xorg server -- _XkbSetCompatMap vulnerability (141f2a22-a6a7-11ef-b282-0c9d92850f7a)

high Nessus Plugin ID 211607

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 141f2a22-a6a7-11ef-b282-0c9d92850f7a advisory.

The X.Org project reports:
The _XkbSetCompatMap() function attempts to resize the `sym_interpret` buffer.

However, It didn't update its size properly.
It updated `num_si` only, without updating `size_si`.

This may lead to local privilege escalation if the server is run as root or remote code execution (e.g. x11 over ssh).

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: 211607

File Name: freebsd_pkg_141f2a22a6a711efb2820c9d92850f7a.nasl

Version: 1.1

Type: local

Family: FreeBSD Local Security Checks

Published: 11/19/2024

Updated: 11/19/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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-2024-9632

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/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:xwayland, p-cpe:/a:freebsd:freebsd:xorg-server, 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: 11/19/2024

Vulnerability Publication Date: 10/29/2024

Reference Information

CVE: CVE-2024-9632

Detections

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