Alibaba Cloud Linux 3 : 0021: glib2 (ALINUX3-SA-2026:0021)

high Nessus Plugin ID 297531

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 a vulnerability as referenced in the ALINUX3-SA-2026:0021 advisory.

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

CVE-2025-13601:
A heap-based buffer overflow problem was found in glib through an incorrect calculation of buffer size in the g_escape_uri_string() function. If the string to escape contains a very large number of unacceptable characters (which would need escaping), the calculation of the length of the escaped string could overflow, leading to a potential write off the end of the newly allocated string.

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

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 affected packages.

Plugin Details

Severity: High

ID: 297531

File Name: alinux3_sa_2026-0021.nasl

Version: 1.2

Type: local

Family: Alibaba Cloud Linux Local Security Checks

Published: 2/2/2026

Updated: 2/9/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 5.2

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

CVSS Score Source: CVE-2025-13601

CVSS v3

Risk Factor: High

Base Score: 7.7

Temporal Score: 6.9

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

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

Vulnerability Information

CPE: cpe:/o:alibabacloud:alibaba_cloud_linux_3, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:glib2-devel, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:glib2, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:glib2-doc, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:glib2-static, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:glib2-tests

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/30/2026

Vulnerability Publication Date: 11/26/2025

Reference Information

CVE: CVE-2025-13601

Detections

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