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FKIE_CVE-2025-4373

Vulnerability from fkie_nvd - Published: 2025-05-06 15:16 - Updated: 2026-09-07 21:17
Summary
A flaw was found in GLib, which is vulnerable to an integer overflow in the g_string_insert_unichar() function. When the position at which to insert the character is large, the position will overflow, leading to a buffer underwrite.
Impacted products
Vendor Product Version

{
  "affected": [
    {
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          "defaultStatus": "unaffected",
          "packageName": "glib",
          "versions": [
            {
              "lessThan": "2.84.2",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:10.0"
          ],
          "defaultStatus": "affected",
          "packageName": "glib2",
          "product": "Red Hat Enterprise Linux 10",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:2.80.4-4.el10_0.6",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:enterprise_linux:8::crb",
            "cpe:/o:redhat:enterprise_linux:8::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "glib2",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:2.56.4-166.el8_10",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_aus:8.2::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "glib2",
          "product": "Red Hat Enterprise Linux 8.2 Advanced Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:2.56.4-8.el8_2.2",
              "versionType": "rpm"
            }
          ]
        },
        {
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          "cpes": [
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          ],
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          "packageName": "glib2",
          "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
          "vendor": "Red Hat",
          "versions": [
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              "status": "unaffected",
              "version": "0:2.56.4-10.el8_4.2",
              "versionType": "rpm"
            }
          ]
        },
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            "cpe:/o:redhat:rhel_eus_long_life:8.4::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "glib2",
          "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
          "vendor": "Red Hat",
          "versions": [
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              "status": "unaffected",
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            "cpe:/o:redhat:rhel_tus:8.6::baseos"
          ],
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          "packageName": "glib2",
          "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
          "vendor": "Red Hat",
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              "status": "unaffected",
              "version": "0:2.56.4-158.el8_6.2",
              "versionType": "rpm"
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          ]
        },
        {
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          "cpes": [
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            "cpe:/o:redhat:rhel_e4s:8.6::baseos",
            "cpe:/o:redhat:rhel_tus:8.6::baseos"
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          "defaultStatus": "affected",
          "packageName": "glib2",
          "product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
          "vendor": "Red Hat",
          "versions": [
            {
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              "status": "unaffected",
              "version": "0:2.56.4-158.el8_6.2",
              "versionType": "rpm"
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          ]
        },
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          "cpes": [
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            "cpe:/o:redhat:rhel_e4s:8.6::baseos",
            "cpe:/o:redhat:rhel_tus:8.6::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "glib2",
          "product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
          "vendor": "Red Hat",
          "versions": [
            {
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              "status": "unaffected",
              "version": "0:2.56.4-158.el8_6.2",
              "versionType": "rpm"
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        {
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          "packageName": "glib2",
          "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
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          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat",
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          "packageName": "glib2",
          "product": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
          "vendor": "Red Hat",
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              "versionType": "rpm"
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            "cpe:/o:redhat:rhel_e4s:9.2::baseos"
          ],
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          "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
          "vendor": "Red Hat",
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              "status": "unaffected",
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              "versionType": "rpm"
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          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
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            "cpe:/a:redhat:rhel_eus:9.4::crb",
            "cpe:/o:redhat:rhel_eus:9.4::baseos"
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          "packageName": "glib2",
          "product": "Red Hat Enterprise Linux 9.4 Extended Update Support",
          "vendor": "Red Hat",
          "versions": [
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              "status": "unaffected",
              "version": "0:2.68.4-14.el9_4.3",
              "versionType": "rpm"
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          "product": "Red Hat Insights proxy 1.5",
          "vendor": "Red Hat",
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          "packageName": "rhosdt/jaeger-agent-rhel8",
          "product": "Red Hat OpenShift distributed tracing 3.6.1",
          "vendor": "Red Hat",
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              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SCALANCE XRM334 (24V DC, 2x10G, 24xSFP, 8xSFP+)",
          "vendor": "Siemens",
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            {
              "lessThan": "V3.3",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SCALANCE XRM334 (2x230 V AC, 12xFO)",
          "vendor": "Siemens",
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              "version": "0",
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          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SCALANCE XRM334 (2x230V AC, 2x10G, 24xSFP, 8xSFP+)",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V3.3",
              "status": "affected",
              "version": "0",
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            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "V3.1.5",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "V3.1.5",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
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              "status": "affected",
              "version": "V3.1.5",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "V3.1.5",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "V3.1.5",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in GLib, which is vulnerable to an integer overflow in the g_string_insert_unichar() function. When the position at which to insert the character is large, the position will overflow, leading to a buffer underwrite."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 una falla en GLib que causa un desbordamiento de enteros en la funci\u00f3n g_string_insert_unichar(). Cuando la posici\u00f3n donde se inserta el car\u00e1cter es grande, esta se desborda, lo que provoca una subscritura del b\u00fafer."
    }
  ],
  "id": "CVE-2025-4373",
  "lastModified": "2026-09-07T21:17:27.187",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 4.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 2.5,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-4373",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-05-06T15:09:21.791020Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-05-06T15:16:05.320",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:10855"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:11140"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:11327"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:11373"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:11374"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:11662"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:12275"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:13335"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:14988"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:14989"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:14990"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:14991"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/security/cve/CVE-2025-4373"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2364265"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://gitlab.gnome.org/GNOME/glib/-/issues/3677"
    },
    {
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"
    },
    {
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-089022.html"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-124"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Detection rules are retrieved from Rulezet.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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