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High severity · published Apr 15, 2023
CVE-2020-17354
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…
8.6
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Lilypond · Lilypond
before 2.24.0 · source: NVD
Affected product
LI
Lilypond
Lilypond
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-17354
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-17354
Release Notes
http://lilypond.org/doc/v2.18/Documentation/usage/command_002dline-usage
Patch
https://gitlab.com/lilypond/lilypond/-/merge_requests/1522
Product
https://lilypond.org/download.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K43PF6VGFJNNGAPY57BW3VMEFFOSMRLF/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ST5BLLQ4GDME3SN7UE5OMNE5GZE66X4Y/
Exploit
https://phabricator.wikimedia.org/T259210
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