FKIE_CVE-2025-32743

Vulnerability from fkie_nvd - Published: 2025-04-10 14:15 - Updated: 2026-06-17 09:12
Severity
9.0 (Critical) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Summary
In ConnMan through 1.44, the lookup string in ns_resolv in dnsproxy.c can be NULL or an empty string when the TC (Truncated) bit is set in a DNS response. This allows attackers to cause a denial of service (application crash) or possibly execute arbitrary code, because those lookup values lead to incorrect length calculations and incorrect memcpy operations.
References
cve@mitre.orghttps://lapis-sawfish-be3.notion.site/0-click-Vulnerability-in-Comman-1-43_v3-1cadc00d01d080b0b3b9c46a6da584cc
cve@mitre.orghttps://web.git.kernel.org/pub/scm/network/connman/connman.git/tree/src/dnsproxy.c?h=1.44#n1688
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "product": "ConnMan",
          "vendor": "ConnMan",
          "versions": [
            {
              "lessThanOrEqual": "1.44",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In ConnMan through 1.44, the lookup string in ns_resolv in dnsproxy.c can be NULL or an empty string when the TC (Truncated) bit is set in a DNS response. This allows attackers to cause a denial of service (application crash) or possibly execute arbitrary code, because those lookup values lead to incorrect length calculations and incorrect memcpy operations."
    },
    {
      "lang": "es",
      "value": "En ConnMan hasta la versi\u00f3n 1.44, la cadena de b\u00fasqueda en ns_resolv en dnsproxy.c puede ser NULL o una cadena vac\u00eda cuando el bit TC (truncado) est\u00e1 configurado en una respuesta DNS. Esto permite a los atacantes provocar una denegaci\u00f3n de servicio (bloqueo de la aplicaci\u00f3n) o posiblemente ejecutar c\u00f3digo arbitrario, porque esos valores de b\u00fasqueda conducen a c\u00e1lculos de longitud incorrectos y operaciones de memcpy incorrectas."
    }
  ],
  "id": "CVE-2025-32743",
  "lastModified": "2026-06-17T09:12:31.353",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.0,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 6.0,
        "source": "cve@mitre.org",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-32743",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-04-10T14:30:10.050718Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-04-10T14:15:29.740",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "https://lapis-sawfish-be3.notion.site/0-click-Vulnerability-in-Comman-1-43_v3-1cadc00d01d080b0b3b9c46a6da584cc"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://web.git.kernel.org/pub/scm/network/connman/connman.git/tree/src/dnsproxy.c?h=1.44#n1688"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-392"
        }
      ],
      "source": "cve@mitre.org",
      "type": "Secondary"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    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.