CVE-2023-32636

Name: CVE-2023-32636
Creator: NVD / NIST
Published: 2023-09-14T20:15:09.653+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.77%

Last modified Jun 17, 2026

CVE-2023-32636 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A flaw was found in glib, where the 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. EPSS estimates a 0.77% chance of exploitation in the next 30 days.

Description

A flaw was found in glib, where the 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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.77%

51.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Gnome	Glib	< 2.74.4

References

https://gitlab.gnome.org/GNOME/glib/-/issues/2841Issue Tracking, Vendor Advisory
https://https://discourse.gnome.org/t/multiple-fixes-for-gvariant-normalisation-issues-in-glib/12835Broken Link
https://security.netapp.com/advisory/ntap-20231110-0002/Third Party Advisory
https://gitlab.gnome.org/GNOME/glib/-/issues/2841Issue Tracking, Vendor Advisory
https://https://discourse.gnome.org/t/multiple-fixes-for-gvariant-normalisation-issues-in-glib/12835Broken Link
https://security.netapp.com/advisory/ntap-20231110-0002/Third Party Advisory

Timeline

Published: Sep 14, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-32636?

How severe is CVE-2023-32636?

CVE-2023-32636 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.77% probability of exploitation in the next 30 days.

How do I fix CVE-2023-32636?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-32636?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST