Amazon Linux 2 : glib2 (ALAS-2025-2767)

high Nessus Plugin ID 216829

Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of glib2 installed on the remote host is prior to 2.56.1-9. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2025-2767 advisory.

GLib's GVariant deserialization prior to GLib 2.74.4 failed to validate the input conforms to the expected format, leading to denial of service. (CVE-2023-29499)

GLib's GVariant deserialization prior to GLib 2.74.4 is vulnerable to a slowdown issue where a crafted GVariant can cause excessive processing, leading to denial of service. (CVE-2023-32611)

GLib's GVariant deserialization code is vulnerable to a denial of service introduced by additional input validation added to resolve CVE-2023-29499. The offset table validation may be very slow. This bug does not affect any released version of GLib, but does affect GLib distributors who followed the guidance of GLib developers to backport the initial fix for CVE-2023-29499 (CVE-2023-32636)

GLib's GVariant deserialization code is vulnerable to a heap buffer overflow introduced by the fix for CVE-2023-32665. This bug does not affect any released version of GLib, but does affect GLib distributors who followed the guidance of GLib developers to backport the initial fix for CVE-2023-32665.
(CVE-2023-32643)

GLib's GVariant deserialization prior to GLib 2.74.4 is vulnerable to an exponential blowup issue where a crafted GVariant can cause excessive processing, leading to denial of service. (CVE-2023-32665)

Tenable has extracted the preceding description block directly from the tested product 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

Run 'yum update glib2' to update your system.

Plugin Details

Severity: High

ID: 216829

File Name: al2_ALAS-2025-2767.nasl

Version: 1.1

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 2/26/2025

Updated: 2/26/2025

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2023-32643

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:glib2-fam, p-cpe:/a:amazon:linux:glib2, p-cpe:/a:amazon:linux:glib2-static, p-cpe:/a:amazon:linux:glib2-devel, p-cpe:/a:amazon:linux:glib2-debuginfo, p-cpe:/a:amazon:linux:glib2-doc, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:glib2-tests

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/12/2025

Vulnerability Publication Date: 6/7/2023

Reference Information

CVE: CVE-2023-29499, CVE-2023-32611, CVE-2023-32636, CVE-2023-32643, CVE-2023-32665

Detections

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