vuln-ubuntu/data/osv/usn/USN-4784-1.json

{
  "schema_version": "1.7.0",
  "id": "USN-4784-1",
  "summary": "xerces-c vulnerabilities",
  "details": "It was discovered that Xerces-C++ XML Parser mishandles certain kinds of\nexternal DTD references, resulting in a user-after-free. An attacker could\nuse this vulnerability to cause a denial of service (crash) or possibly\nexecute arbitrary code. This issue affected only Ubuntu 16.04 ESM.\n(CVE-2016-2099)\n\nIt was discovered that Xerces-C++ XML Parser fails to successfully parse a\nDTD that is too deeply nested. An unauthenticated attacker could use this\nvulnerability to cause a denial of service. This issue affected only Ubuntu\n16.04 ESM. (CVE-2016-4463)\n\nIt was discovered that Xerces-C++ mishandles certain kinds of external DTD\nreferences, resulting in dereference of a NULL pointer. An attacker could\nuse this vulnerability to cause a denial of service. (CVE-2017-12627)",
  "aliases": [],
  "upstream": [
    "UBUNTU-CVE-2016-2099",
    "UBUNTU-CVE-2016-4463",
    "UBUNTU-CVE-2017-12627"
  ],
  "related": [],
  "published": "2021-03-15T21:00:57Z",
  "modified": "2026-06-25T10:45:58Z",
  "affected": [
    {
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "xerces-c",
        "purl": "pkg:deb/ubuntu/xerces-c@3.1.3+debian-1ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.1.3+debian-1ubuntu0.1~esm1"
            }
          ]
        }
      ],
      "versions": [
        "3.1.1-5.1",
        "3.1.2+debian-1",
        "3.1.3+debian-1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libxerces-c-samples",
            "binary_version": "3.1.3+debian-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "libxerces-c3.1",
            "binary_version": "3.1.3+debian-1ubuntu0.1~esm1"
          }
        ],
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
      },
      "database_specific": {
        "cves_map": {
          "ecosystem": "Ubuntu:Pro:16.04:LTS",
          "cves": [
            {
              "id": "CVE-2016-2099",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            },
            {
              "id": "CVE-2016-4463",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            },
            {
              "id": "CVE-2017-12627",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            }
          ]
        }
      }
    },
    {
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "xerces-c",
        "purl": "pkg:deb/ubuntu/xerces-c@3.2.0+debian-2ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.2.0+debian-2ubuntu0.1~esm1"
            }
          ]
        }
      ],
      "versions": [
        "3.1.4+debian-2",
        "3.1.4+debian-2build1",
        "3.2.0+debian-2"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libxerces-c-samples",
            "binary_version": "3.2.0+debian-2ubuntu0.1~esm1"
          },
          {
            "binary_name": "libxerces-c3.2",
            "binary_version": "3.2.0+debian-2ubuntu0.1~esm1"
          }
        ],
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
      },
      "database_specific": {
        "cves_map": {
          "ecosystem": "Ubuntu:Pro:18.04:LTS",
          "cves": [
            {
              "id": "CVE-2017-12627",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            }
          ]
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4784-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-2099"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-4463"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2017-12627"
    }
  ]
}