RHEL 7 : tigervnc (RHSA-2024:0006)

high Nessus Plugin ID 193756

Synopsis

The remote Red Hat host is missing one or more security updates for tigervnc.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:0006 advisory.

- xorg-x11-server: out-of-bounds memory reads/writes in XKB button actions (CVE-2023-6377)

- xorg-x11-server: out-of-bounds memory read in RRChangeOutputProperty and RRChangeProviderProperty (CVE-2023-6478)

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

Solution

Update the RHEL tigervnc package based on the guidance in RHSA-2024:0006.

See Also

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=2253291

https://bugzilla.redhat.com/show_bug.cgi?id=2253298

http://www.nessus.org/u?b4d4f4d3

https://access.redhat.com/errata/RHSA-2024:0006

Plugin Details

Severity: High

ID: 193756

File Name: redhat-RHSA-2024-0006.nasl

Version: 1.0

Type: local

Agent: unix

Published: 4/23/2024

Updated: 4/23/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2023-6478

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

CVSS Score Source: CVE-2023-6377

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:tigervnc, p-cpe:/a:redhat:enterprise_linux:tigervnc-icons, p-cpe:/a:redhat:enterprise_linux:tigervnc-license, p-cpe:/a:redhat:enterprise_linux:tigervnc-server, p-cpe:/a:redhat:enterprise_linux:tigervnc-server-applet, p-cpe:/a:redhat:enterprise_linux:tigervnc-server-minimal, p-cpe:/a:redhat:enterprise_linux:tigervnc-server-module

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 1/2/2024

Vulnerability Publication Date: 12/13/2023

Reference Information

CVE: CVE-2023-6377, CVE-2023-6478

CWE: 125, 190

RHSA: 2024:0006