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CVE-2023-32643

HIGH
7.8
CVSS Score
Published: September 14, 2023 at 07:14 PM UTC
Updated: October 15, 2026 at 12:16 AM UTC
1 product affected across 1 vendorGLib

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Severity
HIGH7.8
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

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.

Affected

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

GLib· Gnome
95%
v < 2.75.1
Affected range stops below 2.75.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

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

Patch and advisory references

References (4)

Issue TrackingVendor Advisory
Source: [email protected]
https://gitlab.gnome.org/GNOME/glib/-/issues/2840
Broken Link
Source: [email protected]
https://https://discourse.gnome.org/t/multiple-fixes-for-gvariant-normalisation-issues-in-glib/12835
Source: [email protected]
https://security.netapp.com/advisory/ntap-20240426-0005/
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-398330.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-122CWE-787

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