FKIE_CVE-2025-8114

Vulnerability from fkie_nvd - Published: 2025-07-24 15:15 - Updated: 2025-11-17 21:15
Severity ?
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
A flaw was found in libssh, a library that implements the SSH protocol. When calculating the session ID during the key exchange (KEX) process, an allocation failure in cryptographic functions may lead to a NULL pointer dereference. This issue can cause the client or server to crash.
References
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2025-8114Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2383220Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://git.libssh.org/projects/libssh.git/commit/?id=53ac23ded4cb2c5463f6c4cd1525331bd578812d
secalert@redhat.comhttps://git.libssh.org/projects/libssh.git/commit/?id=65f363c9
secalert@redhat.comhttps://www.libssh.org/security/advisories/CVE-2025-8114.txt
Impacted products
Vendor Product Version
libssh libssh *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A2936209-B5E8-4C55-ABEE-2CD028C91B8F",
              "versionEndIncluding": "0.11.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in libssh, a library that implements the SSH protocol. When calculating the session ID during the key exchange (KEX) process, an allocation failure in cryptographic functions may lead to a NULL pointer dereference. This issue can cause the client or server to crash."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 una falla en libssh, una librer\u00eda que implementa el protocolo SSH. Al calcular el ID de sesi\u00f3n durante el proceso de intercambio de claves (KEX), un fallo de asignaci\u00f3n en las funciones criptogr\u00e1ficas puede provocar una desreferencia de puntero nulo. Este problema puede provocar el bloqueo del cliente o del servidor."
    }
  ],
  "id": "CVE-2025-8114",
  "lastModified": "2025-11-17T21:15:58.530",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 3.6,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-07-24T15:15:27.117",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://access.redhat.com/security/cve/CVE-2025-8114"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2383220"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://git.libssh.org/projects/libssh.git/commit/?id=53ac23ded4cb2c5463f6c4cd1525331bd578812d"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://git.libssh.org/projects/libssh.git/commit/?id=65f363c9"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://www.libssh.org/security/advisories/CVE-2025-8114.txt"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    }
  ]
}


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