Vulnerability-Lookup

ubuntu-cve-2021-36980

Vulnerability from osv_ubuntu

Published

2021-07-20 07:15

Modified

2025-09-08 16:47

Summary

Details

Open vSwitch (aka openvswitch) 2.11.0 through 2.15.0 has a use-after-free in decode_NXAST_RAW_ENCAP (called from ofpact_decode and ofpacts_decode) during the decoding of a RAW_ENCAP action.

Severity

5.5 (Medium)


                    
                      CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

5.5 (Medium)


                    
                      CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2021-36980	REPORT
	https://github.com/google/oss-fuzz-vulns/blob/mai…	REPORT
	https://ubuntu.com/security/notices/USN-5065-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2021-36980	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "openvswitch-common",
            "binary_version": "2.13.3-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "openvswitch-pki",
            "binary_version": "2.13.3-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "openvswitch-source",
            "binary_version": "2.13.3-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "openvswitch-switch",
            "binary_version": "2.13.3-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "openvswitch-switch-dpdk",
            "binary_version": "2.13.3-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "openvswitch-test",
            "binary_version": "2.13.3-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "openvswitch-testcontroller",
            "binary_version": "2.13.3-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "openvswitch-vtep",
            "binary_version": "2.13.3-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "python3-openvswitch",
            "binary_version": "2.13.3-0ubuntu0.20.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "openvswitch",
        "purl": "pkg:deb/ubuntu/openvswitch@2.13.3-0ubuntu0.20.04.2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.13.3-0ubuntu0.20.04.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.12.0-0ubuntu1",
        "2.12.0-0ubuntu2",
        "2.12.1~git20191107.7accd1302-0ubuntu1",
        "2.12.90~git20200107.af683565b-0ubuntu1",
        "2.12.90~git20200107.af683565b-0ubuntu2",
        "2.12.90~git20200107.af683565b-0ubuntu3",
        "2.13.0~git20200127.dbdf66c29-0ubuntu2",
        "2.13.0~git20200212.15ae9db33-0ubuntu1",
        "2.13.0~git20200212.15ae9db33-0ubuntu2",
        "2.13.0-0ubuntu1",
        "2.13.1-0ubuntu0.20.04.1",
        "2.13.1-0ubuntu0.20.04.3",
        "2.13.1-0ubuntu0.20.04.4",
        "2.13.3-0ubuntu0.20.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "Open vSwitch (aka openvswitch) 2.11.0 through 2.15.0 has a use-after-free in decode_NXAST_RAW_ENCAP (called from ofpact_decode and ofpacts_decode) during the decoding of a RAW_ENCAP action.",
  "id": "UBUNTU-CVE-2021-36980",
  "modified": "2025-09-08T16:47:15Z",
  "published": "2021-07-20T07:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-36980"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/openvswitch/OSV-2020-2197.yaml"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5065-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-36980"
    }
  ],
  "related": [
    "USN-5065-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-36980"
  ]
}

CVE-2021-36980 (GCVE-0-2021-36980)

Vulnerability from cvelistv5 – Published: 2021-07-20 00:00 – Updated: 2025-05-05 16:46

Summary

Open vSwitch (aka openvswitch) 2.11.0 through 2.15.0 has a use-after-free in decode_NXAST_RAW_ENCAP (called from ofpact_decode and ofpacts_decode) during the decoding of a RAW_ENCAP action.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

n/a
CWE-416 - Use After Free

Assigner

mitre

References

9 references

URL	Tags
https://github.com/google/oss-fuzz-vulns/blob/mai…
https://bugs.chromium.org/p/oss-fuzz/issues/detai…
https://github.com/openvswitch/ovs/commit/77cccc7…
https://github.com/openvswitch/ovs/commit/38744b1…
https://github.com/openvswitch/ovs/commit/65c61b0…
https://github.com/openvswitch/ovs/commit/6d67310…
https://github.com/openvswitch/ovs/commit/8ce8dc3…
https://github.com/openvswitch/ovs/commit/9926637…
https://security.gentoo.org/glsa/202311-16	vendor-advisory

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T01:09:07.234Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/openvswitch/OSV-2020-2197.yaml"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27851"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/openvswitch/ovs/commit/77cccc74deede443e8b9102299efc869a52b65b2"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/openvswitch/ovs/commit/38744b1bcb022c611712527f039722115300f58f"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/openvswitch/ovs/commit/65c61b0c23a0d474696d7b1cea522a5016a8aeb3"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/openvswitch/ovs/commit/6d67310f4d2524b466b98f05ebccc1add1e8cf35"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/openvswitch/ovs/commit/8ce8dc34b5f73b30ce0c1869af9947013c3c6575"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/openvswitch/ovs/commit/9926637a80d0d243dbf9c49761046895e9d1a8e2"
          },
          {
            "name": "GLSA-202311-16",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202311-16"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2021-36980",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-23T13:22:15.331185Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-416",
                "description": "CWE-416 Use After Free",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-05-05T16:46:44.736Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Open vSwitch (aka openvswitch) 2.11.0 through 2.15.0 has a use-after-free in decode_NXAST_RAW_ENCAP (called from ofpact_decode and ofpacts_decode) during the decoding of a RAW_ENCAP action."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-11-26T11:06:18.489Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/openvswitch/OSV-2020-2197.yaml"
        },
        {
          "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27851"
        },
        {
          "url": "https://github.com/openvswitch/ovs/commit/77cccc74deede443e8b9102299efc869a52b65b2"
        },
        {
          "url": "https://github.com/openvswitch/ovs/commit/38744b1bcb022c611712527f039722115300f58f"
        },
        {
          "url": "https://github.com/openvswitch/ovs/commit/65c61b0c23a0d474696d7b1cea522a5016a8aeb3"
        },
        {
          "url": "https://github.com/openvswitch/ovs/commit/6d67310f4d2524b466b98f05ebccc1add1e8cf35"
        },
        {
          "url": "https://github.com/openvswitch/ovs/commit/8ce8dc34b5f73b30ce0c1869af9947013c3c6575"
        },
        {
          "url": "https://github.com/openvswitch/ovs/commit/9926637a80d0d243dbf9c49761046895e9d1a8e2"
        },
        {
          "name": "GLSA-202311-16",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202311-16"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-36980",
    "datePublished": "2021-07-20T00:00:00.000Z",
    "dateReserved": "2021-07-20T00:00:00.000Z",
    "dateUpdated": "2025-05-05T16:46:44.736Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

usn-5065-1

Vulnerability from osv_ubuntu

Published

2021-09-08 11:21

Modified

2026-02-10 04:42

Summary

openvswitch vulnerability

Details

It was discovered that Open vSwitch incorrectly handled decoding RAW_ENCAP actions. A remote attacker could use this issue to cause Open vSwitch to crash, resulting in a denial of service, or possibly execute arbitrary code.

References

URL

Type

	https://ubuntu.com/security/notices/USN-5065-1	ADVISORY
	https://ubuntu.com/security/CVE-2021-36980	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-36980",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "openvswitch-common",
            "binary_version": "2.13.3-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "openvswitch-pki",
            "binary_version": "2.13.3-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "openvswitch-source",
            "binary_version": "2.13.3-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "openvswitch-switch",
            "binary_version": "2.13.3-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "openvswitch-switch-dpdk",
            "binary_version": "2.13.3-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "openvswitch-test",
            "binary_version": "2.13.3-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "openvswitch-testcontroller",
            "binary_version": "2.13.3-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "openvswitch-vtep",
            "binary_version": "2.13.3-0ubuntu0.20.04.2"
          },
          {
            "binary_name": "python3-openvswitch",
            "binary_version": "2.13.3-0ubuntu0.20.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "openvswitch",
        "purl": "pkg:deb/ubuntu/openvswitch@2.13.3-0ubuntu0.20.04.2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.13.3-0ubuntu0.20.04.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.12.0-0ubuntu1",
        "2.12.0-0ubuntu2",
        "2.12.1~git20191107.7accd1302-0ubuntu1",
        "2.12.90~git20200107.af683565b-0ubuntu1",
        "2.12.90~git20200107.af683565b-0ubuntu2",
        "2.12.90~git20200107.af683565b-0ubuntu3",
        "2.13.0~git20200127.dbdf66c29-0ubuntu2",
        "2.13.0~git20200212.15ae9db33-0ubuntu1",
        "2.13.0~git20200212.15ae9db33-0ubuntu2",
        "2.13.0-0ubuntu1",
        "2.13.1-0ubuntu0.20.04.1",
        "2.13.1-0ubuntu0.20.04.3",
        "2.13.1-0ubuntu0.20.04.4",
        "2.13.3-0ubuntu0.20.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that Open vSwitch incorrectly handled decoding RAW_ENCAP\nactions. A remote attacker could use this issue to cause Open vSwitch to\ncrash, resulting in a denial of service, or possibly execute arbitrary\ncode.\n",
  "id": "USN-5065-1",
  "modified": "2026-02-10T04:42:18Z",
  "published": "2021-09-08T11:21:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5065-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-36980"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "openvswitch vulnerability",
  "upstream": [
    "UBUNTU-CVE-2021-36980"
  ]
}

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.

Action not permitted

ubuntu-cve-2021-36980

Vulnerability from osv_ubuntu

CVE-2021-36980 (GCVE-0-2021-36980)

usn-5065-1

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature