openvswitch — security advisory

{
  "id": "c7dd7791d354f9a49ff39979db1f21880ce5cccf563962a0f0f712bc2d933cde",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-35498",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2020-35498",
    "summary": "A vulnerability was found in openvswitch. A limitation in the implementation of userspace packet parsing can allow a malicious user to send a specially crafted packet causing the resulting megaflow in the kernel to be too wide, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.",
    "evidence": "osv:DEBIAN-CVE-2020-35498",
    "products": [
      {
        "name": {
          "value": "openvswitch",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.15.0~git20210104.def6eb1ea+dfsg1-5",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "openvswitch",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.15.0~git20210104.def6eb1ea+dfsg1-5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "openvswitch",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.15.0~git20210104.def6eb1ea+dfsg1-5",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2020-35498",
      "aliases": [
        "DEBIAN-CVE-2020-35498"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.15.0~git20210104.def6eb1ea+dfsg1-5"
                }
              ]
            }
          ],
          "package": {
            "name": "openvswitch",
            "purl": "pkg:deb/debian/openvswitch?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-35498.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.15.0~git20210104.def6eb1ea+dfsg1-5"
                }
              ]
            }
          ],
          "package": {
            "name": "openvswitch",
            "purl": "pkg:deb/debian/openvswitch?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-35498.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.15.0~git20210104.def6eb1ea+dfsg1-5"
                }
              ]
            }
          ],
          "package": {
            "name": "openvswitch",
            "purl": "pkg:deb/debian/openvswitch?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-35498.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-26T12:02:00.354784580Z",
      "provider": "osv",
      "upstream": [
        "CVE-2020-35498"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2020-35498"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2020-35498",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 451956,
  "published_at": "2021-02-11T18:15:15.677+00:00"
}