Vulnerability-Lookup

UBUNTU-CVE-2020-6080 (CVE-2020-6080)

Vulnerability from osv_ubuntu – Published: 2020-03-24 21:15 – Updated: 2026-04-22 07:39 – Source website

Details

An exploitable denial-of-service vulnerability exists in the resource allocation handling of Videolabs libmicrodns 0.1.0. When encountering errors while parsing mDNS messages, some allocated data is not freed, possibly leading to a denial-of-service condition via resource exhaustion. An attacker can send one mDNS message repeatedly to trigger this vulnerability through the function rr_read_RR [5] reads the current resource record, except for the RDATA section. This is read by the loop at in rr_read. For each RR type, a different function is called. When the RR type is 0x10, the function rr_read_TXT is called at [6].

Severity

7.5 (High)


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

7.5 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2020-6080	REPORT
	https://talosintelligence.com/vulnerability_repor…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2020-6080	REPORT
	https://ubuntu.com/security/notices/USN-7239-1	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libmicrodns0",
            "binary_version": "0.0.8-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "libmicrodns",
        "purl": "pkg:deb/ubuntu/libmicrodns@0.0.8-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.0.8-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0.7-2",
        "0.0.8-1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libvlc-bin",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
          },
          {
            "binary_name": "libvlc5",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
          },
          {
            "binary_name": "libvlccore9",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
          },
          {
            "binary_name": "vlc",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
          },
          {
            "binary_name": "vlc-bin",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
          },
          {
            "binary_name": "vlc-data",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
          },
          {
            "binary_name": "vlc-l10n",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
          },
          {
            "binary_name": "vlc-plugin-access-extra",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
          },
          {
            "binary_name": "vlc-plugin-base",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
          },
          {
            "binary_name": "vlc-plugin-fluidsynth",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
          },
          {
            "binary_name": "vlc-plugin-jack",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
          },
          {
            "binary_name": "vlc-plugin-notify",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
          },
          {
            "binary_name": "vlc-plugin-qt",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
          },
          {
            "binary_name": "vlc-plugin-samba",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
          },
          {
            "binary_name": "vlc-plugin-skins2",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
          },
          {
            "binary_name": "vlc-plugin-svg",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
          },
          {
            "binary_name": "vlc-plugin-video-output",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
          },
          {
            "binary_name": "vlc-plugin-video-splitter",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
          },
          {
            "binary_name": "vlc-plugin-visualization",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
          },
          {
            "binary_name": "vlc-plugin-zvbi",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "vlc",
        "purl": "pkg:deb/ubuntu/vlc@3.0.8-0ubuntu18.04.1+esm3?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.8-0ubuntu18.04.1+esm3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.6-6",
        "2.2.6-6build1",
        "2.2.7-1",
        "2.2.8-1",
        "2.2.8-1ubuntu4",
        "2.2.8-2",
        "3.0.0~rc1-1ubuntu1",
        "3.0.0~rc1-1ubuntu3",
        "3.0.0~rc2-1ubuntu1",
        "3.0.0~rc2-2ubuntu1",
        "3.0.0~rc2-2ubuntu2",
        "3.0.0~rc4-1ubuntu1",
        "3.0.0~rc7-2ubuntu1",
        "3.0.0~rc8-1ubuntu1",
        "3.0.0-1ubuntu1",
        "3.0.1-1ubuntu5",
        "3.0.1-2ubuntu1",
        "3.0.1-2ubuntu2",
        "3.0.1-3",
        "3.0.1-3build1",
        "3.0.2-0ubuntu0.1",
        "3.0.3-1-1ubuntu1",
        "3.0.4-1ubuntu0.2",
        "3.0.7.1-0ubuntu18.04.1",
        "3.0.8-0ubuntu18.04.1",
        "3.0.8-0ubuntu18.04.1+esm1",
        "3.0.8-0ubuntu18.04.1+esm2"
      ]
    }
  ],
  "aliases": [],
  "details": "An exploitable denial-of-service vulnerability exists in the resource allocation handling of Videolabs libmicrodns 0.1.0. When encountering errors while parsing mDNS messages, some allocated data is not freed, possibly leading to a denial-of-service condition via resource exhaustion. An attacker can send one mDNS message repeatedly to trigger this vulnerability through the function rr_read_RR [5] reads the current resource record, except for the RDATA section. This is read by the loop at in rr_read. For each RR type, a different function is called. When the RR type is 0x10, the function rr_read_TXT is called at [6].",
  "id": "UBUNTU-CVE-2020-6080",
  "modified": "2026-04-22T07:39:18Z",
  "published": "2020-03-24T21:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-6080"
    },
    {
      "type": "REPORT",
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2020-1002"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-6080"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7239-1"
    }
  ],
  "related": [
    "USN-7239-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/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-2020-6080"
  ]
}

CVE-2020-6080 (GCVE-0-2020-6080)

Vulnerability from cvelistv5 – Published: 2020-03-24 20:50 – Updated: 2024-08-04 08:47

Summary

Severity

7.5 (High)


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

CWE

denial of service

Assigner

talos mitre root

References

3 references

URL	Tags
https://www.debian.org/security/2020/dsa-4671	vendor-advisoryx_refsource_DEBIAN
https://security.gentoo.org/glsa/202005-10	vendor-advisoryx_refsource_GENTOO
https://talosintelligence.com/vulnerability_repor…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	Videolabs	Affected: Videolabs libmicrodns 0.1.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
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            "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2020-1002"
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        "title": "CVE Program Container"
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    ],
    "cna": {
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          "product": "Videolabs",
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      "descriptions": [
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          "lang": "en",
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        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
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}

USN-7239-1 (UBUNTU-CVE-2020-6071)

Vulnerability from osv_ubuntu – Published: 2025-01-28 23:36 – Updated: 2026-04-22 07:37 – Source website

Summary

libmicrodns vulnerabilities

Details

It was discovered that libmicrodns could recursively follow the same compression pointer, leading to an infinite loop. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-6071)

It was discovered that libmicrodns did not check the return value of the rr_decode function, which could lead to a double free. An attacker could possibly use this issue to execute arbitrary code. (CVE-2020-6072)

It was discovered that libmicrodns incorrectly handled certain inputs, which could lead to an integer overflow. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-6073)

It was discovered that libmicrodns incorrectly handled certain inputs, which could lead to a out-of-bounds read. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-6077)

It was discovered that libmicrodns incorrectly handled memory when parsing mDNS messages in mdns_recv, which could lead to a NULL pointer dereference. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-6078)

It was discovered that libmicrodns incorrectly handled memory, which could lead to excessive memory consumption due to memory leaks. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-6079, CVE-2020-6080)

References

URL

Type

	https://ubuntu.com/security/notices/USN-7239-1	ADVISORY
	https://ubuntu.com/security/CVE-2020-6071	REPORT
	https://ubuntu.com/security/CVE-2020-6072	REPORT
	https://ubuntu.com/security/CVE-2020-6073	REPORT
	https://ubuntu.com/security/CVE-2020-6077	REPORT
	https://ubuntu.com/security/CVE-2020-6078	REPORT
	https://ubuntu.com/security/CVE-2020-6079	REPORT
	https://ubuntu.com/security/CVE-2020-6080	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-6071",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-6072",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-6073",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-6077",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-6078",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-6079",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-6080",
              "severity": [
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                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libmicrodns0",
            "binary_version": "0.0.8-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "libmicrodns",
        "purl": "pkg:deb/ubuntu/libmicrodns@0.0.8-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
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              "fixed": "0.0.8-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0.7-2",
        "0.0.8-1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that libmicrodns could recursively follow the same\ncompression pointer, leading to an infinite loop. An attacker could\npossibly use this issue to cause a denial of service. (CVE-2020-6071)\n\nIt was discovered that libmicrodns did not check the return value of the\nrr_decode function, which could lead to a double free. An attacker could\npossibly use this issue to execute arbitrary code. (CVE-2020-6072)\n\nIt was discovered that libmicrodns incorrectly handled certain inputs,\nwhich could lead to an integer overflow. An attacker could possibly use\nthis issue to cause a denial of service. (CVE-2020-6073)\n\nIt was discovered that libmicrodns incorrectly handled certain inputs,\nwhich could lead to a out-of-bounds read. An attacker could possibly use\nthis issue to cause a denial of service. (CVE-2020-6077)\n\nIt was discovered that libmicrodns incorrectly handled memory when parsing\nmDNS messages in mdns_recv, which could lead to a NULL pointer dereference.\nAn attacker could possibly use this issue to cause a denial of service.\n(CVE-2020-6078)\n\nIt was discovered that libmicrodns incorrectly handled memory, which could\nlead to excessive memory consumption due to memory leaks. An attacker\ncould possibly use this issue to cause a denial of service.\n(CVE-2020-6079, CVE-2020-6080)\n",
  "id": "USN-7239-1",
  "modified": "2026-04-22T07:37:15Z",
  "published": "2025-01-28T23:36:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7239-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-6071"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-6072"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-6073"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-6077"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-6078"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-6079"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-6080"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "libmicrodns vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2020-6071",
    "UBUNTU-CVE-2020-6072",
    "UBUNTU-CVE-2020-6073",
    "UBUNTU-CVE-2020-6077",
    "UBUNTU-CVE-2020-6078",
    "UBUNTU-CVE-2020-6079",
    "UBUNTU-CVE-2020-6080"
  ]
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

UBUNTU-CVE-2020-6080 (CVE-2020-6080)

CVE-2020-6080 (GCVE-0-2020-6080)

USN-7239-1 (UBUNTU-CVE-2020-6071)

Tags

Sightings

Nomenclature

Related by attack behaviour