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CVE-2023-32643

Status: ModifiedHigh (7.8)—

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.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Gnome — Glib

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2023-32643",
  "cveTags": [],
  "metrics": {
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          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-05-14T17:30:47.183666Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secalert@redhat.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
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  "published": "2023-09-14T20:15:09.770",
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      "source": "secalert@redhat.com"
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      "source": "secalert@redhat.com"
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      "url": "https://gitlab.gnome.org/GNOME/glib/-/issues/2840",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "secalert@redhat.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "Se encontró una falla en GLib. El código de deserialización de GVariant es vulnerable a un desbordamiento del búfer introducido por la solución para CVE-2023-32665. Este error no afecta a ninguna versión publicada de GLib, pero sí afecta a los distribuidores de GLib que siguieron las instrucciones de los desarrolladores de GLib para respaldar la solución inicial para CVE-2023-32665."
    }
  ],
  "lastModified": "2026-06-17T05:59:17.677",
  "configurations": [
    {
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  "sourceIdentifier": "secalert@redhat.com"
}