ubuntu-cve-2024-43398
Vulnerability from osv_ubuntu
Published
2024-08-22 15:15
Modified
2026-06-15 18:03
Summary
Details

REXML is an XML toolkit for Ruby. The REXML gem before 3.3.6 has a DoS vulnerability when it parses an XML that has many deep elements that have same local name attributes. If you need to parse untrusted XMLs with tree parser API like REXML::Document.new, you may be impacted to this vulnerability. If you use other parser APIs such as stream parser API and SAX2 parser API, this vulnerability is not affected. The REXML gem 3.3.6 or later include the patch to fix the vulnerability.

Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libruby2.3",
            "binary_version": "2.3.1-2~ubuntu16.04.16+esm14"
          },
          {
            "binary_name": "ruby2.3",
            "binary_version": "2.3.1-2~ubuntu16.04.16+esm14"
          },
          {
            "binary_name": "ruby2.3-tcltk",
            "binary_version": "2.3.1-2~ubuntu16.04.16+esm14"
          }
        ],
        "priority_reason": "REXML developers have rated this as being a low severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "ruby2.3",
        "purl": "pkg:deb/ubuntu/ruby2.3@2.3.1-2~ubuntu16.04.16+esm14?arch=source\u0026distro=esm-infra-legacy/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.3.0-1",
        "2.3.0-2",
        "2.3.0-4ubuntu2",
        "2.3.0-4ubuntu3",
        "2.3.0-5ubuntu1",
        "2.3.1-2~16.04",
        "2.3.1-2~16.04.2",
        "2.3.1-2~16.04.4",
        "2.3.1-2~16.04.5",
        "2.3.1-2~16.04.6",
        "2.3.1-2~16.04.7",
        "2.3.1-2~16.04.9",
        "2.3.1-2~16.04.10",
        "2.3.1-2~16.04.11",
        "2.3.1-2~16.04.12",
        "2.3.1-2~ubuntu16.04.13",
        "2.3.1-2~ubuntu16.04.14",
        "2.3.1-2~ubuntu16.04.15",
        "2.3.1-2~ubuntu16.04.16",
        "2.3.1-2~ubuntu16.04.16+esm1",
        "2.3.1-2~ubuntu16.04.16+esm2",
        "2.3.1-2~ubuntu16.04.16+esm3",
        "2.3.1-2~ubuntu16.04.16+esm4",
        "2.3.1-2~ubuntu16.04.16+esm5",
        "2.3.1-2~ubuntu16.04.16+esm6",
        "2.3.1-2~ubuntu16.04.16+esm7",
        "2.3.1-2~ubuntu16.04.16+esm8",
        "2.3.1-2~ubuntu16.04.16+esm9",
        "2.3.1-2~ubuntu16.04.16+esm10",
        "2.3.1-2~ubuntu16.04.16+esm11",
        "2.3.1-2~ubuntu16.04.16+esm12",
        "2.3.1-2~ubuntu16.04.16+esm14"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libruby2.5",
            "binary_version": "2.5.1-1ubuntu1.16+esm8"
          },
          {
            "binary_name": "ruby2.5",
            "binary_version": "2.5.1-1ubuntu1.16+esm8"
          }
        ],
        "priority_reason": "REXML developers have rated this as being a low severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "ruby2.5",
        "purl": "pkg:deb/ubuntu/ruby2.5@2.5.1-1ubuntu1.16+esm8?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.5.0~preview1-1ubuntu2",
        "2.5.0-4ubuntu1",
        "2.5.0-4ubuntu4",
        "2.5.0-5ubuntu1",
        "2.5.0-6ubuntu1",
        "2.5.1-1ubuntu1",
        "2.5.1-1ubuntu1.1",
        "2.5.1-1ubuntu1.2",
        "2.5.1-1ubuntu1.4",
        "2.5.1-1ubuntu1.5",
        "2.5.1-1ubuntu1.6",
        "2.5.1-1ubuntu1.7",
        "2.5.1-1ubuntu1.8",
        "2.5.1-1ubuntu1.9",
        "2.5.1-1ubuntu1.10",
        "2.5.1-1ubuntu1.11",
        "2.5.1-1ubuntu1.12",
        "2.5.1-1ubuntu1.13",
        "2.5.1-1ubuntu1.14",
        "2.5.1-1ubuntu1.15",
        "2.5.1-1ubuntu1.16",
        "2.5.1-1ubuntu1.16+esm1",
        "2.5.1-1ubuntu1.16+esm3",
        "2.5.1-1ubuntu1.16+esm4",
        "2.5.1-1ubuntu1.16+esm5",
        "2.5.1-1ubuntu1.16+esm6",
        "2.5.1-1ubuntu1.16+esm7",
        "2.5.1-1ubuntu1.16+esm8"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libruby2.7",
            "binary_version": "2.7.0-5ubuntu1.16"
          },
          {
            "binary_name": "ruby2.7",
            "binary_version": "2.7.0-5ubuntu1.16"
          }
        ],
        "priority_reason": "REXML developers have rated this as being a low severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "ruby2.7",
        "purl": "pkg:deb/ubuntu/ruby2.7@2.7.0-5ubuntu1.16?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.7.0-5ubuntu1.16"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.7.0-1",
        "2.7.0-2",
        "2.7.0-3",
        "2.7.0-4",
        "2.7.0-4ubuntu1",
        "2.7.0-5ubuntu1",
        "2.7.0-5ubuntu1.1",
        "2.7.0-5ubuntu1.2",
        "2.7.0-5ubuntu1.3",
        "2.7.0-5ubuntu1.4",
        "2.7.0-5ubuntu1.5",
        "2.7.0-5ubuntu1.6",
        "2.7.0-5ubuntu1.7",
        "2.7.0-5ubuntu1.8",
        "2.7.0-5ubuntu1.9",
        "2.7.0-5ubuntu1.10",
        "2.7.0-5ubuntu1.11",
        "2.7.0-5ubuntu1.12",
        "2.7.0-5ubuntu1.13",
        "2.7.0-5ubuntu1.14",
        "2.7.0-5ubuntu1.15"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libruby3.0",
            "binary_version": "3.0.2-7ubuntu2.10"
          },
          {
            "binary_name": "ruby3.0",
            "binary_version": "3.0.2-7ubuntu2.10"
          }
        ],
        "priority_reason": "REXML developers have rated this as being a low severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "ruby3.0",
        "purl": "pkg:deb/ubuntu/ruby3.0@3.0.2-7ubuntu2.10?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.2-7ubuntu2.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.0.2-5ubuntu1",
        "3.0.2-7",
        "3.0.2-7ubuntu2",
        "3.0.2-7ubuntu2.1",
        "3.0.2-7ubuntu2.2",
        "3.0.2-7ubuntu2.3",
        "3.0.2-7ubuntu2.4",
        "3.0.2-7ubuntu2.5",
        "3.0.2-7ubuntu2.6",
        "3.0.2-7ubuntu2.7",
        "3.0.2-7ubuntu2.8"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libruby3.2",
            "binary_version": "3.2.3-1ubuntu0.24.04.5"
          },
          {
            "binary_name": "ruby3.2",
            "binary_version": "3.2.3-1ubuntu0.24.04.5"
          }
        ],
        "priority_reason": "REXML developers have rated this as being a low severity issue"
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "ruby3.2",
        "purl": "pkg:deb/ubuntu/ruby3.2@3.2.3-1ubuntu0.24.04.5?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.2.3-1ubuntu0.24.04.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.2.3-1",
        "3.2.3-1build2",
        "3.2.3-1build3",
        "3.2.3-1ubuntu0.24.04.1",
        "3.2.3-1ubuntu0.24.04.3"
      ]
    }
  ],
  "aliases": [],
  "details": "REXML is an XML toolkit for Ruby. The REXML gem before 3.3.6 has a DoS vulnerability when it parses an XML that has many deep elements that have same local name attributes. If you need to parse untrusted XMLs with tree parser API like REXML::Document.new, you may be impacted to this vulnerability. If you use other parser APIs such as stream parser API and SAX2 parser API, this vulnerability is not affected. The REXML gem 3.3.6 or later include the patch to fix the vulnerability.",
  "id": "UBUNTU-CVE-2024-43398",
  "modified": "2026-06-15T18:03:13Z",
  "published": "2024-08-22T15:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-43398"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-43398"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ruby/rexml/security/advisories/GHSA-vmwr-mc7x-5vc3"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7256-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7418-1"
    }
  ],
  "related": [
    "USN-7256-1",
    "USN-7418-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2024-43398"
  ]
}



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