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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2018-10196

NULL pointer dereference vulnerability in the rebuild_vlists function in lib/dotgen/conc.c in the dotgen library in Graphviz 2.40.1 allows remote attackers to cause a denial of service (application crash) via a crafted file.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2018-10196
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 10:17 UTC · Revision 1

Source evidence

CVE-2018-10196

core-osv · Original source

Published 30 May 2018, 21:29 UTC

NULL pointer dereference vulnerability in the rebuild_vlists function in lib/dotgen/conc.c in the dotgen library in Graphviz 2.40.1 allows remote attackers to cause a denial of service (application crash) via a crafted file.

osv:CVE-2018-10196
Complete source record
{
  "id": "617e6c162784ac0277545fb23d50ff0afe2c2f6c4de721822359349f3fc5e35f",
  "url": "https://osv.dev/vulnerability/CVE-2018-10196",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-10196",
    "summary": "NULL pointer dereference vulnerability in the rebuild_vlists function in lib/dotgen/conc.c in the dotgen library in Graphviz 2.40.1 allows remote attackers to cause a denial of service (application crash) via a crafted file.",
    "evidence": "osv:CVE-2018-10196",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-10196",
      "aliases": [
        "CVE-2018-10196"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://gitlab.com/graphviz/graphviz",
              "type": "GIT",
              "events": [
                {
                  "introduced": "67cd2e5121379a38e0801cc05cce5033f8a2a609"
                },
                {
                  "last_affected": "67cd2e5121379a38e0801cc05cce5033f8a2a609"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:graphviz:graphviz:2.40.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.40.1"
                      },
                      {
                        "last_affected": "2.40.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.40.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-10196.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:03.788901848Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2021/05/msg00014.html",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N6VR2CT3LD52GWAQUZAOSEXSYE3O7HGN/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TWUEEJPMS5LAROYJYY6FREOTI6VPN3M4/",
        "https://usn.ubuntu.com/3731-1/",
        "https://bugzilla.redhat.com/show_bug.cgi?id=1579254",
        "https://gitlab.com/graphviz/graphviz/issues/1367"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*"
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "14.04"
                  },
                  {
                    "last_affected": "14.04"
                  },
                  {
                    "introduced": "16.04"
                  },
                  {
                    "last_affected": "16.04"
                  },
                  {
                    "introduced": "18.04"
                  },
                  {
                    "last_affected": "18.04"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:27:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "27"
                  },
                  {
                    "last_affected": "27"
                  },
                  {
                    "introduced": "28"
                  },
                  {
                    "last_affected": "28"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-10196",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 381213,
  "published_at": "2018-05-30T21:29:00.283+00:00"
}