Alibaba Cloud Linux 3 : 0221: xorg-x11-server (ALINUX3-SA-2024:0221)

high Nessus Plugin ID 236269

Synopsis

The remote Alibaba Cloud Linux host is missing one or more security updates.

Description

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2024:0221 advisory.

Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

CVE-2023-5367:
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-2023-5380:
A use-after-free flaw was found in the xorg-x11-server. An X server crash may occur in a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode) if the pointer is warped from within a window on one screen to the root window of the other screen and if the original window is destroyed followed by another window being destroyed.

CVE-2023-6377:
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-2023-6478:
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-2024-0229:
An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a device frozen by a sync grab is reattached to a different master device. This issue may lead to an application crash, local privilege escalation (if the server runs with extended privileges), or remote code execution in SSH X11 forwarding environments.

CVE-2024-0408:
A flaw was found in the X.Org server. The GLX PBuffer code does not call the XACE hook when creating the buffer, leaving it unlabeled. When the client issues another request to access that resource (as with a GetGeometry) or when it creates another resource that needs to access that buffer, such as a GC, the XSELINUX code will try to use an object that was never labeled and crash because the SID is NULL.

CVE-2024-0409:
A flaw was found in the X.Org server. The cursor code in both Xephyr and Xwayland uses the wrong type of private at creation. It uses the cursor bits type with the cursor as private, and when initiating the cursor, that overwrites the XSELINUX context.

CVE-2024-21885:
A flaw was found in X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can trigger a heap buffer overflow condition, which may lead to an application crash or remote code execution in SSH X11 forwarding environments.

CVE-2024-21886:
A heap buffer overflow flaw was found in the DisableDevice function in the X.Org server. This issue may lead to an application crash or, in some circumstances, remote code execution in SSH X11 forwarding environments.

Tenable has extracted the preceding description block directly from the Alibaba Cloud Linux security advisory.

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.

Plugin Details

Severity: High

ID: 236269

File Name: alinux3_sa_2024-0221.nasl

Version: 1.1

Type: local

Family: Alibaba Cloud Linux Local Security Checks

Published: 5/14/2025

Updated: 5/14/2025

Supported Sensors: 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-2024-0409

Vulnerability Information

CPE: cpe:/o:alibabacloud:alibaba_cloud_linux_3, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:xorg-x11-server-source, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:xorg-x11-server-doc, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:xorg-x11-server-common, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:xorg-x11-server-xnest, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:xorg-x11-server-xnest-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:xorg-x11-server-xdmx, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:xorg-x11-server-xephyr-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:xorg-x11-server-debugsource, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:xorg-x11-server-xdmx-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:xorg-x11-server-xorg, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:xorg-x11-server-devel, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:xorg-x11-server-xvfb, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:xorg-x11-server-xorg-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:xorg-x11-server-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:xorg-x11-server-xephyr, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:xorg-x11-server-xvfb-debuginfo

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/30/2024

Vulnerability Publication Date: 10/25/2023

Reference Information

CVE: CVE-2023-5367, CVE-2023-5380, CVE-2023-6377, CVE-2023-6478, CVE-2024-0229, CVE-2024-0408, CVE-2024-0409, CVE-2024-21885, CVE-2024-21886

Detections

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