Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2020-17354

8.6 · HIGH

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 arbitra…

Published Apr 15, 2023CWE-863EPSS 0.41%

Overview

CVE-2020-17354 is a high-severity vulnerability. It was published on April 15, 2023 and has a CVSS 3.1 base score of 8.6 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Reflilypond.org/doc/v2.18/Documentation/usage/command_002dline-usageRefgitlab.com/lilypond/lilypond/-/merge_requests/1522Reflilypond.org/download.htmlReflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K43PF6VGFJNNGAPY57BW3VMEFFOSMRLF/Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ST5BLLQ4GDME3SN7UE5OMNE5GZE66X4Y/Refphabricator.wikimedia.org/T259210Reftracker.debian.org/news/1249694/accepted-lilypond-2221-1-source-into-unstable/Refwww.mediawiki.org/wiki/Extension:Score/2021_security_advisoryReflilypond.org/doc/v2.18/Documentation/usage/command_002dline-usageRefgitlab.com/lilypond/lilypond/-/merge_requests/1522

How CyberStrike helps

Frequently asked questions

What is CVE-2020-17354?

CVE-2020-17354 is a high-severity vulnerability. It was published on April 15, 2023 and has a CVSS 3.1 base score of 8.6 (HIGH).

How severe is CVE-2020-17354?

This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2020-17354?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-17354?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-17354 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related HIGH CVEs from 2020

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999