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  4. CVE 2023 32611 gvariantbyteswap can take a long time with some
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Back to active CVEs
Medium · CVSS 5.5CVE-2023-32611

G_variant_byteswap() can take a long time with some non-normal inputsCVE-2023-32611

Answer in brief

CVE-2023-32611 records a Medium severity (CVSS 5.5) vulnerability in G_variant_byteswap() can take a long time with some non-normal inputs. The current sources do not mark it as known exploited. The current feed maps Fedora/glib (generic), n/a/glib2 (generic), Red Hat/glib2 (generic), Fedora/glib2 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 14, 2023Updated Oct 15, 2026Source checked Nov 4, 2026First seen by HOL Jun 23, 2026Material review Oct 15, 2026
Upstream Advisory

Record context

Vulnerability class
Deserialization
EPSS
Not reported
CWE IDs
CWE-400
Source
CVE List V5
Source checked
Nov 4, 2026
References
7 linked sources
Open source record

Key facts

Risk
Medium · CVSS 5.5
Exploitation
Not marked as known exploited
Affected software
9 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Fedora/glib (generic), n/a/glib2 (generic), Red Hat/glib2 (generic), Fedora/glib2 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:a:gnome:glib:*:*:*:*:*:*:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Fedora/glibgeneric*Not reported
n/a/glib2generic*Not reported
Red Hat/glib2generic*Not reported
Fedora/glib2generic*Not reported
Fedora/mingw-glib2generic*Not reported
Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric>=V3.1.0 <V3.1.5V3.1.5
Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric>=V3.1.0 <V3.1.5V3.1.5
Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric>=V3.1.0 <V3.1.5V3.1.5

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Fedora/glib, n/a/glib2, Red Hat/glib2.
  2. 2Review the reported fix. Update Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP to V3.1.5; Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP to V3.1.5; Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFP to V3.1.5 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 14, 2023

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 15, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Jun 23, 2026

Sources and claim methodology

  • Source referenceaccess.redhat.com
  • Source referencebugzilla.redhat.com
  • Source referencecert-portal.siemens.com
  • Source referencegitlab.gnome.org
  • Source referencelists.debian.org
  • Source referencesecurity.gentoo.org
  • Source referencesecurity.netapp.com
Upstream source description

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

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • tsParticles: Unbounded HTTP Request Body Buffering in @tsparticles/mcp-server Leads to Remote DoSAlso CWE-400
  • tsParticles: A single anonymous MCP session can monopolize HTTP mode and deny new clientsAlso CWE-400