CVE-2023-32643

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.

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.4% chance of exploitation in the next 30 days; higher than 31% of CVEs (scores of 2026-10-25)

CWEs

CWE-787, CWE-122

Published

2023-09-14

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• gnome:glib

References

• https://gitlab.gnome.org/GNOME/glib/-/issues/2840
• https://https://discourse.gnome.org/t/multiple-fixes-for-gvariant-normalisation-issues-in-glib/12835
• https://security.netapp.com/advisory/ntap-20240426-0005/
• https://gitlab.gnome.org/GNOME/glib/-/issues/2840
• https://https://discourse.gnome.org/t/multiple-fixes-for-gvariant-normalisation-issues-in-glib/12835

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