ubuntu-cve-2018-20743
Vulnerability from osv_ubuntu
Published
2019-01-25 16:29
Modified
2025-10-24 04:47
Summary
Details

murmur in Mumble through 1.2.19 before 2018-08-31 mishandles multiple concurrent requests that are persisted in the database, which allows remote attackers to cause a denial of service (daemon hang or crash) via a message flood.

Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mumble",
            "binary_version": "1.2.12-1ubuntu1+esm1"
          },
          {
            "binary_name": "mumble-server",
            "binary_version": "1.2.12-1ubuntu1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "mumble",
        "purl": "pkg:deb/ubuntu/mumble@1.2.12-1ubuntu1+esm1?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2.8-2ubuntu1",
        "1.2.12-1ubuntu1",
        "1.2.12-1ubuntu1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mumble",
            "binary_version": "1.2.19-1ubuntu1.1"
          },
          {
            "binary_name": "mumble-server",
            "binary_version": "1.2.19-1ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "mumble",
        "purl": "pkg:deb/ubuntu/mumble@1.2.19-1ubuntu1.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2.18-1",
        "1.2.19-1",
        "1.2.19-1build1",
        "1.2.19-1ubuntu1",
        "1.2.19-1ubuntu1.1"
      ]
    }
  ],
  "aliases": [],
  "details": "murmur in Mumble through 1.2.19 before 2018-08-31 mishandles multiple concurrent requests that are persisted in the database, which allows remote attackers to cause a denial of service (daemon hang or crash) via a message flood.",
  "id": "UBUNTU-CVE-2018-20743",
  "modified": "2025-10-24T04:47:19Z",
  "published": "2019-01-25T16:29:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-20743"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/mumble-voip/mumble/issues/3505"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/mumble-voip/mumble/pull/3510"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/mumble-voip/mumble/pull/3512"
    },
    {
      "type": "REPORT",
      "url": "https://bugs.debian.org/919249"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-20743"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2018-20743"
  ]
}



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Nomenclature

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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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