FKIE_CVE-2020-17354

Vulnerability from fkie_nvd - Published: 2023-04-15 22:15 - Updated: 2026-06-17 02:58
Severity
8.6 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
8.6 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Summary
LilyPond before 2.24 allows attackers to bypass the -dsafe protection mechanism via output-def-lookup or output-def-scope, as demonstrated by dangerous Scheme code in a .ly file that causes arbitrary code execution during conversion to a different file format. NOTE: in 2.24 and later versions, safe mode is removed, and the product no longer tries to block code execution when external files are used.
References
cve@mitre.orghttp://lilypond.org/doc/v2.18/Documentation/usage/command_002dline-usageRelease Notes
cve@mitre.orghttps://gitlab.com/lilypond/lilypond/-/merge_requests/1522Patch, Vendor Advisory
cve@mitre.orghttps://lilypond.org/download.htmlProduct
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K43PF6VGFJNNGAPY57BW3VMEFFOSMRLF/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ST5BLLQ4GDME3SN7UE5OMNE5GZE66X4Y/
cve@mitre.orghttps://phabricator.wikimedia.org/T259210Exploit, Third Party Advisory
cve@mitre.orghttps://tracker.debian.org/news/1249694/accepted-lilypond-2221-1-source-into-unstable/Mailing List, Release Notes, Third Party Advisory
cve@mitre.orghttps://www.mediawiki.org/wiki/Extension:Score/2021_security_advisoryThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lilypond.org/doc/v2.18/Documentation/usage/command_002dline-usageRelease Notes
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/lilypond/lilypond/-/merge_requests/1522Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lilypond.org/download.htmlProduct
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K43PF6VGFJNNGAPY57BW3VMEFFOSMRLF/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ST5BLLQ4GDME3SN7UE5OMNE5GZE66X4Y/
af854a3a-2127-422b-91ae-364da2661108https://phabricator.wikimedia.org/T259210Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://tracker.debian.org/news/1249694/accepted-lilypond-2221-1-source-into-unstable/Mailing List, Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.mediawiki.org/wiki/Extension:Score/2021_security_advisoryThird Party Advisory
Impacted products
Vendor Product Version
lilypond lilypond *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:lilypond:lilypond:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "92211612-2E3A-414F-9467-AEA056309378",
              "versionEndExcluding": "2.24.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "LilyPond before 2.24 allows attackers to bypass the -dsafe protection mechanism via output-def-lookup or output-def-scope, as demonstrated by dangerous Scheme code in a .ly file that causes arbitrary code execution during conversion to a different file format. NOTE: in 2.24 and later versions, safe mode is removed, and the product no longer tries to block code execution when external files are used."
    }
  ],
  "id": "CVE-2020-17354",
  "lastModified": "2026-06-17T02:58:47.563",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 8.6,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 6.0,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 8.6,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 6.0,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2020-17354",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-02-06T17:00:16.319107Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2023-04-15T22:15:06.913",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes"
      ],
      "url": "http://lilypond.org/doc/v2.18/Documentation/usage/command_002dline-usage"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://gitlab.com/lilypond/lilypond/-/merge_requests/1522"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Product"
      ],
      "url": "https://lilypond.org/download.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K43PF6VGFJNNGAPY57BW3VMEFFOSMRLF/"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ST5BLLQ4GDME3SN7UE5OMNE5GZE66X4Y/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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      ],
      "url": "https://phabricator.wikimedia.org/T259210"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://tracker.debian.org/news/1249694/accepted-lilypond-2221-1-source-into-unstable/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.mediawiki.org/wiki/Extension:Score/2021_security_advisory"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes"
      ],
      "url": "http://lilypond.org/doc/v2.18/Documentation/usage/command_002dline-usage"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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        "Vendor Advisory"
      ],
      "url": "https://gitlab.com/lilypond/lilypond/-/merge_requests/1522"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Product"
      ],
      "url": "https://lilypond.org/download.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K43PF6VGFJNNGAPY57BW3VMEFFOSMRLF/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ST5BLLQ4GDME3SN7UE5OMNE5GZE66X4Y/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://phabricator.wikimedia.org/T259210"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://tracker.debian.org/news/1249694/accepted-lilypond-2221-1-source-into-unstable/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.mediawiki.org/wiki/Extension:Score/2021_security_advisory"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



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Sightings

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Nomenclature

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