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TI-2023-15921 Aliases CVE-2023-32643GHSA-8jhw-fpw9-r227

Heap-based buffer overflow in glib

Priority LOW 34CWE-122Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00375 31st percentileScored 2026-11-07
Fix Fixed glib (glib): 2.75.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
glibglib—2.75.1Patch availableCNA
  • glib Vendorglib Affected — Fixed in 2.75.1 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gnome:glib:*:*:*:*:*:*:*:*before 2.75.1VulnerableGNOME
  • cpe:2.3:a:gnome:glib:*:*:*:*:*:*:*:* Versions before 2.75.1 Vulnerable ·GNOME

Remediation

  • Fix · CNA glib (glib) Fixed in 2.75.1

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

Not affected: 4 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-32643
  2. 2026-10-03 Alias added: GHSA-8jhw-fpw9-r227

References

Advisory 1

Other 2

  • TI-2026-41775 Glib: off-by-one error in glib/gkeyfile.c via "g_key_file_get_locale_string_list" CVSS 3.1HIGH 8.6
  • TI-2026-41772 Glib: out-of-bounds read in glib/gdatetime.c:g_date_time_get_ymd via invalid gdatetime CVSS 3.1HIGH 7.5
  • TI-2025-03596 Glib: glib crash after long command line CVSS 3.1HIGH 7.5
  • TI-2023-15942 Gvariant deserialisation does not match spec for non-normal data CVSS 3.1MEDIUM 5.5
  • TI-2024-35203 gio/gsocks4aproxy.c in GNOME GLib before 2.82.1 has an off-by-one error and resultant… CVSS 3.1CRITICAL 9.8
  • TI-2018-11777 In GNOME GLib 2.56.1, g_markup_parse_context_end_parse() in gmarkup.c has a NULL pointer dereference. CVSS 3.0CRITICAL 9.8
See all 32 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences