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TencentOS Server 2: xorg-x11-server (TSSA-2025:0925)

high Nessus Plugin ID 277454

Synopsis

The remote TencentOS Server 2 host is missing one or more security updates.

Description

The version of Tencent Linux installed on the remote TencentOS Server 2 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2025:0925 advisory.

 Package updates are available for TencentOS Server 2 that fix the following vulnerabilities:

 CVE-2025-62229:
 A flaw was found in the X.Org X server and Xwayland when processing X11 Present extension notifications.
 Improper error handling during notification creation can leave dangling pointers that lead to a use-after- free condition. This can cause memory corruption or a crash, potentially allowing an attacker to execute arbitrary code or cause a denial of service.

 CVE-2025-62230:
 A flaw was discovered in the X.Org X servers X Keyboard (Xkb) extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free condition. This can cause memory corruption or a crash when affected clients disconnect.

 CVE-2025-62231:
 A flaw was identified in the X.Org X servers X Keyboard (Xkb) extension where improper bounds checking in the XkbSetCompatMap() function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the value calculation may overflow, leading to memory corruption or a crash.

Tenable has extracted the preceding description block directly from the Tencent 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.

See Also

https://mirrors.tencent.com/tlinux/errata/tssa-20250925.xml

Plugin Details

Severity: High

ID: 277454

File Name: tencentos_TSSA_2025_0925.nasl

Version: 1.1

Type: local

Published: 12/4/2025

Updated: 12/4/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.0

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2025-62231

CVSS v3

Risk Factor: High

Base Score: 7.3

Temporal Score: 6.4

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:tencent:tencentos_server:xorg-x11-server, cpe:/o:tencent:tencentos_server:2

Required KB Items: Host/local_checks_enabled, Host/etc/os-release, Host/TencentOS/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 11/25/2025

Vulnerability Publication Date: 10/28/2025

Reference Information

CVE: CVE-2025-62229, CVE-2025-62230, CVE-2025-62231