CVE-2020-17354 Security feature bypass in n/a
Attackers can bypass LilyPond's safe mode protection to execute arbitrary code via malicious input files, requiring an upgrade to a patched version.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-17354?
CVE-2020-17354 is a high-severity vulnerability in n/a, published on 15 Apr 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-863
Which versions are affected by CVE-2020-17354?
It affects 1 product.
Products include Lilypond Lilypond.
How do I fix CVE-2020-17354?
Upgrade to a fixed version.
Is CVE-2020-17354 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-17354 exists.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2020-17354, GHSA-vm3h-24gm-v3q6, MGASA-2023-0325, UBUNTU-CVE-2020-17354.