vuln-ubuntu/data/osv/cve/2021/UBUNTU-CVE-2021-3403.json

{
  "schema_version": "1.7.0",
  "id": "UBUNTU-CVE-2021-3403",
  "details": "In ytnef 1.9.3, the TNEFSubjectHandler function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) due to a double free which can be triggered via a crafted file.",
  "aliases": [],
  "upstream": [
    "CVE-2021-3403"
  ],
  "related": [],
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
    },
    {
      "type": "Ubuntu",
      "score": "medium"
    }
  ],
  "published": "2021-03-04T22:15:00Z",
  "modified": "2026-10-17T09:07:54Z",
  "affected": [
    {
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "libytnef",
        "purl": "pkg:deb/ubuntu/libytnef@1.5-9ubuntu0.1?arch=source&distro=xenial"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "versions": [
        "1.5-6",
        "1.5-9",
        "1.5-9ubuntu0.1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libytnef0",
            "binary_version": "1.5-9ubuntu0.1"
          }
        ]
      }
    },
    {
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "libytnef",
        "purl": "pkg:deb/ubuntu/libytnef@1.9.2-2?arch=source&distro=bionic"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "versions": [
        "1.9.2-2"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libytnef0",
            "binary_version": "1.9.2-2"
          },
          {
            "binary_name": "ytnef-tools",
            "binary_version": "1.9.2-2"
          }
        ]
      }
    },
    {
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libytnef",
        "purl": "pkg:deb/ubuntu/libytnef@1.9.3-1?arch=source&distro=focal"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "versions": [
        "1.9.3-1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libytnef0",
            "binary_version": "1.9.3-1"
          },
          {
            "binary_name": "ytnef-tools",
            "binary_version": "1.9.3-1"
          }
        ]
      }
    },
    {
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libytnef",
        "purl": "pkg:deb/ubuntu/libytnef@2.0-1?arch=source&distro=jammy"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "versions": [
        "1.9.3-3",
        "2.0-1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libytnef0",
            "binary_version": "2.0-1"
          },
          {
            "binary_name": "ytnef-tools",
            "binary_version": "2.0-1"
          }
        ]
      }
    },
    {
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libytnef",
        "purl": "pkg:deb/ubuntu/libytnef@2.1.2-1build1?arch=source&distro=noble"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "versions": [
        "2.0-1",
        "2.1.2-1",
        "2.1.2-1build1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libytnef0",
            "binary_version": "2.1.2-1build1"
          },
          {
            "binary_name": "ytnef-tools",
            "binary_version": "2.1.2-1build1"
          }
        ]
      }
    },
    {
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "libytnef",
        "purl": "pkg:deb/ubuntu/libytnef@2.1.2-1build1?arch=source&distro=questing"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "versions": [
        "2.1.2-1build1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libytnef0",
            "binary_version": "2.1.2-1build1"
          },
          {
            "binary_name": "ytnef-tools",
            "binary_version": "2.1.2-1build1"
          }
        ]
      }
    },
    {
      "package": {
        "ecosystem": "Ubuntu:26.10",
        "name": "libytnef",
        "purl": "pkg:deb/ubuntu/libytnef@2.1.2-1build2?arch=source&distro=stonking"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "versions": [
        "2.1.2-1build2"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libytnef0",
            "binary_version": "2.1.2-1build2"
          },
          {
            "binary_name": "ytnef-tools",
            "binary_version": "2.1.2-1build2"
          }
        ]
      }
    },
    {
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libytnef",
        "purl": "pkg:deb/ubuntu/libytnef@2.1.2-1build2?arch=source&distro=resolute"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "versions": [
        "2.1.2-1build1",
        "2.1.2-1build2"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libytnef0",
            "binary_version": "2.1.2-1build2"
          },
          {
            "binary_name": "ytnef-tools",
            "binary_version": "2.1.2-1build2"
          }
        ]
      }
    }
  ],
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3403"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Yeraze/ytnef/issues/85"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-3403"
    }
  ]
}