What’s Vulnerable › Vulnerabilities

CVE-2023-32665: Gvariant deserialisation does not match spec for non-normal data

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-09-14 · updated 2026-10-15
• Weakness: CWE-400

Description

A flaw was found in GLib. GVariant deserialization is vulnerable to an exponential blowup issue where a crafted GVariant can cause excessive processing, leading to denial of service.

Affected products

• GNOME GLib: before 2.74.4 — fixed in 2.74.4

How to fix

Upgrade to a fixed version: GNOME GLib 2.74.4. Check the vendor advisory for mitigations.

References

• https://access.redhat.com/security/cve/CVE-2023-32665
• https://bugzilla.redhat.com/show_bug.cgi?id=2211827
• https://gitlab.gnome.org/GNOME/glib/-/issues/2121
• https://lists.debian.org/debian-lts-announce/2023/09/msg00030.html
• https://security.gentoo.org/glsa/202311-18
• https://security.netapp.com/advisory/ntap-20240426-0006/
• https://access.redhat.com/security/cve/CVE-2023-32665
• https://bugzilla.redhat.com/show_bug.cgi?id=2211827
• https://gitlab.gnome.org/GNOME/glib/-/issues/2121
• https://lists.debian.org/debian-lts-announce/2023/09/msg00030.html
• https://security.gentoo.org/glsa/202311-18
• https://security.netapp.com/advisory/ntap-20240426-0006/

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