FKIE_CVE-2026-0915

Vulnerability from fkie_nvd - Published: 2026-01-15 22:16 - Updated: 2026-06-17 10:11
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
Calling getnetbyaddr or getnetbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend for networks and queries for a zero-valued network in the GNU C Library version 2.0 to version 2.42 can leak stack contents to the configured DNS resolver.
References
3ff69d7a-14f2-4f67-a097-88dee7810d18https://sourceware.org/bugzilla/show_bug.cgi?id=33802Broken Link
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2026/01/16/6Mailing List
134c704f-9b21-4f2e-91b3-4a467353bcc0https://sourceware.org/bugzilla/show_bug.cgi?id=33802Broken Link
Impacted products
Vendor Product Version
gnu glibc *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "glibc",
          "vendor": "The GNU C Library",
          "versions": [
            {
              "lessThanOrEqual": "2.42",
              "status": "affected",
              "version": "2.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "3ff69d7a-14f2-4f67-a097-88dee7810d18"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "45D5C7C8-E53C-4AA3-97A6-1DFCBE5ED529",
              "versionEndIncluding": "2.42",
              "versionStartIncluding": "2.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Calling getnetbyaddr or getnetbyaddr_r with a configured nsswitch.conf that specifies the library\u0027s DNS backend for networks and queries for a zero-valued network in the GNU C Library version 2.0 to version 2.42 can leak stack contents to the configured DNS resolver."
    },
    {
      "lang": "es",
      "value": "Llamar a getnetbyaddr o getnetbyaddr_r con un nsswitch.conf configurado que especifica el backend DNS de la biblioteca para redes y consulta una red con valor cero en la GNU C Library versi\u00f3n 2.0 hasta la versi\u00f3n 2.42 puede filtrar el contenido de la pila al resolvedor DNS configurado."
    }
  ],
  "id": "CVE-2026-0915",
  "lastModified": "2026-06-17T10:11:37.513",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-0915",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-01-20T16:03:19.464174Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-01-15T22:16:12.457",
  "references": [
    {
      "source": "3ff69d7a-14f2-4f67-a097-88dee7810d18",
      "tags": [
        "Broken Link"
      ],
      "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=33802"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2026/01/16/6"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Broken Link"
      ],
      "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=33802"
    }
  ],
  "sourceIdentifier": "3ff69d7a-14f2-4f67-a097-88dee7810d18",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-908"
        }
      ],
      "source": "3ff69d7a-14f2-4f67-a097-88dee7810d18",
      "type": "Secondary"
    }
  ]
}


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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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