Buffer overflow in Glib

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.

Vulnerability class: Buffer Overflow

EPSS: 0.004 (32.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-32643?
CVE-2023-32643 is a medium-severity vulnerability in Glib, classified under Heap-based Buffer Overflow. CVSS score: 5.3/10. Published 2023-09-14.
How severe is CVE-2023-32643?
Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2023-32643 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.