CVE-2020-17354: High severity lilypond vulnerability
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 Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the severity of CVE-2020-17354?
CVE-2020-17354 has a high severity level due to the potential for arbitrary code execution.
How do I fix CVE-2020-17354?
The recommended fix for CVE-2020-17354 is to upgrade LilyPond to version 2.24.0 or later.
What versions of LilyPond are affected by CVE-2020-17354?
CVE-2020-17354 affects all versions of LilyPond prior to 2.24.0.
What type of attack does CVE-2020-17354 enable?
CVE-2020-17354 enables attackers to bypass the -dsafe protection mechanism and execute arbitrary code.
Is there any known exploit for CVE-2020-17354?
Yes, CVE-2020-17354 is demonstrated by inserting dangerous Scheme code into .ly files during file format conversion.