{"id":"UBUNTU-CVE-2020-17354","details":"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.","modified":"2025-10-24T04:48:38Z","published":"2023-04-15T22:15:00Z","upstream":["CVE-2020-17354"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-17354"},{"type":"REPORT","url":"https://phabricator.wikimedia.org/T259210"},{"type":"REPORT","url":"https://phabricator.wikimedia.org/T257062"},{"type":"REPORT","url":"https://www.mediawiki.org/wiki/Extension:Score/2021_security_advisory"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-17354"}],"affected":[{"package":{"name":"lilypond","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/lilypond@2.18.2-4.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.18.2-4","2.18.2-4.1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.18.2-4.1","binary_name":"lilypond"},{"binary_version":"2.18.2-4.1","binary_name":"lilypond-data"},{"binary_version":"2.18.2-4.1","binary_name":"lilypond-doc-html"},{"binary_version":"2.18.2-4.1","binary_name":"lilypond-doc-html-cs"},{"binary_version":"2.18.2-4.1","binary_name":"lilypond-doc-html-de"},{"binary_version":"2.18.2-4.1","binary_name":"lilypond-doc-html-es"},{"binary_version":"2.18.2-4.1","binary_name":"lilypond-doc-html-fr"},{"binary_version":"2.18.2-4.1","binary_name":"lilypond-doc-html-hu"},{"binary_version":"2.18.2-4.1","binary_name":"lilypond-doc-html-it"},{"binary_version":"2.18.2-4.1","binary_name":"lilypond-doc-html-ja"},{"binary_version":"2.18.2-4.1","binary_name":"lilypond-doc-html-nl"},{"binary_version":"2.18.2-4.1","binary_name":"lilypond-doc-html-zh"},{"binary_version":"2.18.2-4.1","binary_name":"lilypond-doc-pdf"},{"binary_version":"2.18.2-4.1","binary_name":"lilypond-doc-pdf-de"},{"binary_version":"2.18.2-4.1","binary_name":"lilypond-doc-pdf-es"},{"binary_version":"2.18.2-4.1","binary_name":"lilypond-doc-pdf-fr"},{"binary_version":"2.18.2-4.1","binary_name":"lilypond-doc-pdf-hu"},{"binary_version":"2.18.2-4.1","binary_name":"lilypond-doc-pdf-it"},{"binary_version":"2.18.2-4.1","binary_name":"lilypond-doc-pdf-nl"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-17354.json"}},{"package":{"name":"lilypond","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/lilypond@2.18.2-12build1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.18.2-9","2.18.2-11","2.18.2-12","2.18.2-12build1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.18.2-12build1","binary_name":"lilypond"},{"binary_version":"2.18.2-12build1","binary_name":"lilypond-data"},{"binary_version":"2.18.2-12build1","binary_name":"lilypond-doc-html"},{"binary_version":"2.18.2-12build1","binary_name":"lilypond-doc-html-cs"},{"binary_version":"2.18.2-12build1","binary_name":"lilypond-doc-html-de"},{"binary_version":"2.18.2-12build1","binary_name":"lilypond-doc-html-es"},{"binary_version":"2.18.2-12build1","binary_name":"lilypond-doc-html-fr"},{"binary_version":"2.18.2-12build1","binary_name":"lilypond-doc-html-hu"},{"binary_version":"2.18.2-12build1","binary_name":"lilypond-doc-html-it"},{"binary_version":"2.18.2-12build1","binary_name":"lilypond-doc-html-ja"},{"binary_version":"2.18.2-12build1","binary_name":"lilypond-doc-html-nl"},{"binary_version":"2.18.2-12build1","binary_name":"lilypond-doc-html-zh"},{"binary_version":"2.18.2-12build1","binary_name":"lilypond-doc-pdf"},{"binary_version":"2.18.2-12build1","binary_name":"lilypond-doc-pdf-de"},{"binary_version":"2.18.2-12build1","binary_name":"lilypond-doc-pdf-es"},{"binary_version":"2.18.2-12build1","binary_name":"lilypond-doc-pdf-fr"},{"binary_version":"2.18.2-12build1","binary_name":"lilypond-doc-pdf-hu"},{"binary_version":"2.18.2-12build1","binary_name":"lilypond-doc-pdf-it"},{"binary_version":"2.18.2-12build1","binary_name":"lilypond-doc-pdf-nl"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-17354.json"}},{"package":{"name":"lilypond","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/lilypond@2.20.0-1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.19.81+really-2.18.2-13ubuntu1","2.19.81+really-2.18.2-13ubuntu2","2.19.81+really-2.18.2-14","2.20.0-1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.20.0-1","binary_name":"lilypond"},{"binary_version":"2.20.0-1","binary_name":"lilypond-data"},{"binary_version":"2.20.0-1","binary_name":"lilypond-doc-html"},{"binary_version":"2.20.0-1","binary_name":"lilypond-doc-html-ca"},{"binary_version":"2.20.0-1","binary_name":"lilypond-doc-html-cs"},{"binary_version":"2.20.0-1","binary_name":"lilypond-doc-html-de"},{"binary_version":"2.20.0-1","binary_name":"lilypond-doc-html-es"},{"binary_version":"2.20.0-1","binary_name":"lilypond-doc-html-fr"},{"binary_version":"2.20.0-1","binary_name":"lilypond-doc-html-hu"},{"binary_version":"2.20.0-1","binary_name":"lilypond-doc-html-it"},{"bin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