ubuntu-cve-2018-16848
Vulnerability from osv_ubuntu
Published
2020-06-15 15:15
Modified
2025-07-18 16:44
Summary
Details

A Denial of Service (DoS) condition is possible in OpenStack Mistral in versions up to and including 7.0.3. Submitting a specially crafted workflow definition YAML file containing nested anchors can lead to resource exhaustion culminating in a denial of service.

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

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "mistral-api",
            "binary_version": "6.0.0-0ubuntu1.1+esm1"
          },
          {
            "binary_name": "mistral-common",
            "binary_version": "6.0.0-0ubuntu1.1+esm1"
          },
          {
            "binary_name": "mistral-engine",
            "binary_version": "6.0.0-0ubuntu1.1+esm1"
          },
          {
            "binary_name": "mistral-event-engine",
            "binary_version": "6.0.0-0ubuntu1.1+esm1"
          },
          {
            "binary_name": "mistral-executor",
            "binary_version": "6.0.0-0ubuntu1.1+esm1"
          },
          {
            "binary_name": "python-mistral",
            "binary_version": "6.0.0-0ubuntu1.1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "mistral",
        "purl": "pkg:deb/ubuntu/mistral@6.0.0-0ubuntu1.1+esm1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.0.0-0ubuntu1.1+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.0.0-0ubuntu1",
        "6.0.0~b1-0ubuntu1",
        "6.0.0~b1-0ubuntu2",
        "6.0.0~b2-0ubuntu1",
        "6.0.0~rc1-0ubuntu1",
        "6.0.0-0ubuntu1",
        "6.0.0-0ubuntu1.1"
      ]
    }
  ],
  "aliases": [],
  "details": "A Denial of Service (DoS) condition is possible in OpenStack Mistral in versions up to and including 7.0.3. Submitting a specially crafted workflow definition YAML file containing nested anchors can lead to resource exhaustion culminating in a denial of service.",
  "id": "UBUNTU-CVE-2018-16848",
  "modified": "2025-07-18T16:44:45Z",
  "published": "2020-06-15T15:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-16848"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1645332"
    },
    {
      "type": "REPORT",
      "url": "https://bugs.launchpad.net/mistral/+bug/1785657"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-16848"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7465-1"
    }
  ],
  "related": [
    "USN-7465-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2018-16848"
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.