AlmaLinux 9 : tigervnc (ALSA-2024:0010)

high Nessus Plugin ID 187636

Synopsis

The remote AlmaLinux host is missing one or more security updates.

Description

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2024:0010 advisory.

- A out-of-bounds write flaw was found in the xorg-x11-server. This issue occurs due to an incorrect calculation of a buffer offset when copying data stored in the heap in the XIChangeDeviceProperty function in Xi/xiproperty.c and in RRChangeOutputProperty function in randr/rrproperty.c, allowing for possible escalation of privileges or denial of service. (CVE-2023-5367)

- A flaw was found in xorg-server. Querying or changing XKB button actions such as moving from a touchpad to a mouse can result in out-of-bounds memory reads and writes. This may allow local privilege escalation or possible remote code execution in cases where X11 forwarding is involved. (CVE-2023-6377)

- A flaw was found in xorg-server. A specially crafted request to RRChangeProviderProperty or RRChangeOutputProperty can trigger an integer overflow which may lead to a disclosure of sensitive information. (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 affected packages.

See Also

https://errata.almalinux.org/9/ALSA-2024-0010.html

Plugin Details

Severity: High

ID: 187636

File Name: alma_linux_ALSA-2024-0010.nasl

Version: 1.0

Type: local

Published: 1/4/2024

Updated: 1/4/2024

Supported Sensors: Continuous 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: p-cpe:/a:alma:linux:tigervnc-icons, p-cpe:/a:alma:linux:tigervnc-license, cpe:/o:alma:linux:9::highavailability, p-cpe:/a:alma:linux:tigervnc-selinux, p-cpe:/a:alma:linux:tigervnc-server, p-cpe:/a:alma:linux:tigervnc-server-module, cpe:/o:alma:linux:9::appstream, cpe:/o:alma:linux:9::nfv, cpe:/o:alma:linux:9::realtime, cpe:/o:alma:linux:9, cpe:/o:alma:linux:9::resilientstorage, cpe:/o:alma:linux:9::sap_hana, cpe:/o:alma:linux:9::supplementary, cpe:/o:alma:linux:9::sap, cpe:/o:alma:linux:9::crb, p-cpe:/a:alma:linux:tigervnc-server-minimal, p-cpe:/a:alma:linux:tigervnc, cpe:/o:alma:linux:9::baseos

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/2/2024

Vulnerability Publication Date: 10/25/2023

Reference Information

CVE: CVE-2023-5367, CVE-2023-6377, CVE-2023-6478

CWE: 125, 190, 787