Security advisory

{
  "id": "c2c24c66679d797364cd638197410b7c05ffb414c362be2155d11329f759a315",
  "url": "https://osv.dev/vulnerability/CVE-2016-9963",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2016-9963",
    "summary": "Exim before 4.87.1 might allow remote attackers to obtain the private DKIM signing key via vectors related to log files and bounce messages.",
    "evidence": "osv:CVE-2016-9963",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2016-9963",
      "aliases": [
        "CVE-2016-9963"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/exim/exim",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "74d8288d7a8fa83989968647149ae47ba10194f8"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "4.87"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "exim-4_87",
            "exim-4_87_RC7",
            "exim-4_87_RC6",
            "exim-4_87_RC5",
            "exim-4_87_RC4",
            "exim-4_84",
            "exim-4_86",
            "exim-4_85",
            "exim-4_87_RC3",
            "exim-4_87_RC2",
            "exim-4_87_RC1",
            "exim-4_86_RC5",
            "exim-4_86_RC4",
            "exim-4_86_RC3",
            "exim-4_86_RC2",
            "exim-4_86_RC1",
            "exim-4_85_RC4",
            "exim-4_85_RC3",
            "exim-4_85_RC2",
            "exim-4_85_RC1",
            "exim-4_84_RC2",
            "exim-4_84_RC1",
            "exim-4_83",
            "exim-4_83_RC3",
            "exim-4_83_RC2",
            "exim-4_83_RC1",
            "exim-4_82",
            "exim-4_82_RC5",
            "exim-4_82_RC4",
            "exim-4_82_RC3",
            "exim-4_82_RC2",
            "exim-4_82_RC1",
            "exim-4_80",
            "exim-4_80_RC7",
            "exim-4_80_RC6",
            "exim-4_80_RC5",
            "exim-4_80_RC4",
            "exim-4_80_RC3",
            "exim-4_80_RC2",
            "exim-4_80_RC1",
            "exim-4_77",
            "exim-4_77_RC4",
            "exim-4_77_RC3",
            "exim-4_77_RC2",
            "exim-4_77_RC1",
            "exim-4_76",
            "exim-4_76_RC2",
            "exim-4_76_RC1",
            "exim-4_75",
            "exim-4_75_RC3",
            "exim-4_75_RC2",
            "exim-4_75_RC1",
            "exim-4_74",
            "exim-4_74_RC1",
            "exim-4_73",
            "exim-4_73_RC1",
            "exim-4_73_RC00",
            "exim-4_72",
            "exim-4_72_RC2",
            "exim-4_72_RC1",
            "exim-4_71",
            "exim-4_70",
            "exim-4_70_RC4",
            "exim-4_70_RC3",
            "DEVEL_PDKIM_START",
            "exim-4_69",
            "exim-4_68",
            "exim-4_67",
            "exim-4_66",
            "exim-4_65",
            "exim-4_64",
            "exim-4_63",
            "exim-4_62",
            "exim-4_61",
            "exim-4_54",
            "exim-4_53",
            "exim-4_52",
            "exim-4_51",
            "exim-4_50"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-9963.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:58.836848118Z",
      "provider": "osv",
      "references": [
        "https://bugs.exim.org/show_bug.cgi?id=1996"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:16.10:*:*:*:*:*:*:*"
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "12.04"
                  },
                  {
                    "last_affected": "12.04"
                  },
                  {
                    "introduced": "14.04"
                  },
                  {
                    "last_affected": "14.04"
                  },
                  {
                    "introduced": "16.04"
                  },
                  {
                    "last_affected": "16.04"
                  },
                  {
                    "introduced": "16.10"
                  },
                  {
                    "last_affected": "16.10"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2016-9963",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 439178,
  "published_at": "2017-02-01T15:59:00.27+00:00"
}