CVE-2020-17354

High

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.

SeverityHigh

CVSS8.6

Exploit probability—

ProductLilypond

PublishedApr 15, 2023

First seenApr 15, 2023

Weakness typeCWE-863Incorrect authorization

How to fix

Update

lilypond lilypond2.24.0 or later

Vendor advisories

lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ST5BLLQ4GDME3SN7UE5OMNE5GZE66X4Y/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K43PF6VGFJNNGAPY57BW3VMEFFOSMRLF/

Affected products

Product	Affected versions	Fixed in
lilypond lilypond	v < 2.24.0	2.24.0

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