CVE-2023-32643: Buffer Overflow

Published Jun 7, 2023
·
Updated

A flaw was found in GLib. The 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.

Affected Software

9 affected componentsFixes available
ubuntu/glib2.0<2.40.2-0ubuntu1.1+
2.40.2-0ubuntu1.1+
ubuntu/glib2.0<2.64.6-1~ubuntu20.04.6
2.64.6-1~ubuntu20.04.6
ubuntu/glib2.0<2.72.4-0ubuntu2.2
2.72.4-0ubuntu2.2
ubuntu/glib2.0<2.74.3-0ubuntu1.2
2.74.3-0ubuntu1.2
ubuntu/glib2.0<2.75.1, <2.74.4
2.75.12.74.4
ubuntu/glib2.0<2.56.4-0ubuntu0.18.04.9+
2.56.4-0ubuntu0.18.04.9+
ubuntu/glib2.0<2.48.2-0ubuntu4.8+
2.48.2-0ubuntu4.8+
debian/glib2.0
2.58.3-2+deb10u32.58.3-2+deb10u52.66.8-1+deb11u12.74.6-22.78.4-12.78.4-3
Gnome GLib<2.75.1

Event History

Jun 7, 2023
CVE Published
via Ubuntu·12:00 AM
Sep 14, 2023
CVE Published
via MITRE·07:14 PM
Data Sourced
via MITRE·07:14 PM
DescriptionSeverityWeakness
Jan 12, 2024
Data Sourced
via Launchpad·12:20 AM
Description

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the vulnerability ID for this flaw in GLib?

The vulnerability ID for this flaw in GLib is CVE-2023-32643.

2

What is the severity rating of CVE-2023-32643?

CVE-2023-32643 has a severity rating of 7.8 (high).

3

Which software is affected by CVE-2023-32643?

The Gnome Glib software versions up to 2.75.1 are affected by CVE-2023-32643.

4

What is the root cause of CVE-2023-32643?

The root cause of CVE-2023-32643 is a heap buffer overflow introduced by the fix for CVE-2023-32665.

5

What is the recommended solution for CVE-2023-32643?

Upgrade to a version of GLib that is not affected by the vulnerability.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203