RHEL 8 : tigervnc (RHSA-2023:1549)

high Nessus Plugin ID 174029

Synopsis

The remote Red Hat host is missing a security update for tigervnc.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1549 advisory.

- xorg-x11-server: X.Org Server Overlay Window Use-After-Free Local Privilege Escalation Vulnerability (CVE-2023-1393)

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 RHEL tigervnc package based on the guidance in RHSA-2023:1549.

See Also

http://www.nessus.org/u?dcda995b

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

https://bugzilla.redhat.com/show_bug.cgi?id=2180288

https://access.redhat.com/errata/RHSA-2023:1549

Plugin Details

Severity: High

ID: 174029

File Name: redhat-RHSA-2023-1549.nasl

Version: 1.2

Type: local

Agent: unix

Published: 4/8/2023

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: 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-2023-1393

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: cpe:/o:redhat:rhel_aus:8.2, cpe:/o:redhat:rhel_e4s:8.2, cpe:/o:redhat:rhel_tus:8.2, 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: 4/3/2023

Vulnerability Publication Date: 3/29/2023

Reference Information

CVE: CVE-2023-1393

CWE: 416

RHSA: 2023:1549