Security advisory

{
  "id": "54aeb92697355efdd234d4c555f4745d733cbae8d572e1ae9e3f8e8fca58ac74",
  "url": "https://osv.dev/vulnerability/CVE-2019-16928",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-16928",
    "summary": "Exim 4.92 through 4.92.2 allows remote code execution, a different vulnerability than CVE-2019-15846. There is a heap-based buffer overflow in string_vformat in string.c involving a long EHLO command.",
    "evidence": "osv:CVE-2019-16928",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2019-16928",
      "aliases": [
        "CVE-2019-16928"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/exim/exim",
              "type": "GIT",
              "events": [
                {
                  "introduced": "ae63862ba6f6ee0c17ec865cc6cf0eebb3ca2389"
                },
                {
                  "last_affected": "2600301ba6dbac5c9d640c87007a07ee6dcea1f4"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.92"
                      },
                      {
                        "last_affected": "4.92.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "exim-4.92.2-RC1",
            "exim-4.92.2",
            "exim-4.92.1-RC2",
            "exim-4.92.1",
            "exim-4.92-jgh",
            "exim-4.92-RC6",
            "exim-4.92"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-16928.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:45.151357766Z",
      "provider": "osv",
      "references": [
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-16928",
        "https://lists.exim.org/lurker/message/20190927.032457.c1044d4c.en.html",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EED7HM3MFIBAP5OIMJAFJ35JAJABTVSC/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T3TJW4HPYH3O5HZCWGD6NSHTEBTTAPDC/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UY6HPRW7MR3KBQ5JFHH6OXM7YCZBJCOB/",
        "https://seclists.org/bugtraq/2019/Sep/60",
        "https://security.gentoo.org/glsa/202003-47",
        "https://usn.ubuntu.com/4141-1/",
        "https://www.debian.org/security/2019/dsa-4536",
        "https://bugs.exim.org/show_bug.cgi?id=2449",
        "https://git.exim.org/exim.git/commit/478effbfd9c3cc5a627fc671d4bf94d13670d65f"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*"
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "19.04"
                  },
                  {
                    "last_affected": "19.04"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "29"
                  },
                  {
                    "last_affected": "29"
                  },
                  {
                    "introduced": "30"
                  },
                  {
                    "last_affected": "30"
                  },
                  {
                    "introduced": "31"
                  },
                  {
                    "last_affected": "31"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2019-16928",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 436055,
  "published_at": "2019-09-27T21:15:10.017+00:00"
}