Alpine: multiple xorg-server packages: security update to 21.1.19-r0

high Tenable Self-Hosted Container Security Plugin ID 435932

Description

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

- 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-2025-62229)

- A flaw was discovered in the X.Org X server’s 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-2025-62230)

- A flaw was identified in the X.Org X server’s 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.
(CVE-2025-62231)

Plugin Details

Severity: High

ID: 435932

Version: Revision 1.7

Type: Local

Family: Alpine Linux Local Security Checks

Published: 11/5/2025

Updated: 6/1/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.5

Percentile: 57.44

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

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 10/28/2025

Reference Information

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

Detections

Analytics