Detections
Analytics
RHEL 8 : tigervnc (RHSA-2023:0662)
high Nessus Plugin ID 171209
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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-2023:0662 advisory.- xorg-x11-server: DeepCopyPointerClasses use-after-free leads to privilege elevation (CVE-2023-0494)
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-2023:0662.See Also
http://www.nessus.org/u?df08898e
https://access.redhat.com/security/updates/classification/#important
Plugin Details
Severity: High
ID: 171209
File Name: redhat-RHSA-2023-0662.nasl
Version: 1.3
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 2/8/2023
Updated: 4/28/2024
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, 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-2023-0494
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:enterprise_linux:8, 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-selinux, p-cpe:/a:redhat:enterprise_linux:tigervnc-server, 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: 2/8/2023
Vulnerability Publication Date: 2/7/2023
Reference Information
CVE: CVE-2023-0494