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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://lilypond.org/doc/v2.18/Documentation/usage/command_002dline-usage ↗
- https://phabricator.wikimedia.org/T259210 ↗
- https://www.mediawiki.org/wiki/Extension:Score/2021_security_advisory ↗
- https://tracker.debian.org/news/1249694/accepted-lilypond-2221-1-source-into-unstable/ ↗
- https://gitlab.com/lilypond/lilypond/-/merge_requests/1522 ↗
- https://lilypond.org/download.html ↗
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ST5BLLQ4GDME3SN7UE5OMNE5GZE66X4Y/ ↗
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K43PF6VGFJNNGAPY57BW3VMEFFOSMRLF/ ↗