CVE-2023-32665

Gvariant deserialisation does not match spec for non-normal data

MEDIUM
5.5
CVSS Score
Published: September 14, 2023 at 07:03 PM UTC
Updated: October 15, 2026 at 12:16 AM UTC
6 products affected across 3 vendorsGLibFedoraEnterprise Linux

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.4%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.74.4
Affected range stops below 2.74.4, so it looks safe — our inference, not a vendor statement
All versions
All versions8
Vendor states this is fixed in 6 (unknown)
Vendor states this is fixed in 7 (unknown)
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMredhat
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400CWE-502

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