Security advisory

{
  "id": "0190dda0cf23ec724209177b1890ca06f789a4cbabb5058610ce162e952048be",
  "url": "https://osv.dev/vulnerability/CVE-2016-4456",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2016-4456",
    "summary": "The \"GNUTLS_KEYLOGFILE\" environment variable in gnutls 3.4.12 allows remote attackers to overwrite and corrupt arbitrary files in the filesystem.",
    "evidence": "osv:CVE-2016-4456",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2016-4456",
      "aliases": [
        "CVE-2016-4456"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/gnutls/gnutls",
              "type": "GIT",
              "events": [
                {
                  "introduced": "2d57fd211e3647cb17f76d990681d88d18a4969c"
                },
                {
                  "last_affected": "2d57fd211e3647cb17f76d990681d88d18a4969c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gnu:gnutls:3.4.12:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.4.12"
                      },
                      {
                        "last_affected": "3.4.12"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.4.12",
            "gnutls_3_4_12"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-4456.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://gitlab.com/gnutls/gnutls",
              "type": "GIT",
              "events": [
                {
                  "introduced": "2d57fd211e3647cb17f76d990681d88d18a4969c"
                },
                {
                  "last_affected": "2d57fd211e3647cb17f76d990681d88d18a4969c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gnu:gnutls:3.4.12:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.4.12"
                      },
                      {
                        "last_affected": "3.4.12"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.4.12",
            "gnutls_3_4_12"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-4456.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:48.054963618Z",
      "provider": "osv",
      "references": [
        "https://bugzilla.redhat.com/show_bug.cgi?id=1343505"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2016-4456",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 436680,
  "published_at": "2017-08-08T21:29:00.407+00:00"
}