Improper Neutralization of Special Elements in Output Used by a Downstream Component in LilyPond - CVE-2017-17523
Published: December 11, 2017 / Updated: August 8, 2020
Vulnerability identifier: #VU37765
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2017-17523
CWE-ID: CWE-74
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: LilyPond
Affected software:
LilyPond
LilyPond
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
lilypond-invoke-editor in LilyPond 2.19.80 does not validate strings before launching the program specified by the BROWSER environment variable, which allows remote attackers to conduct argument-injection attacks via a crafted URL, as demonstrated by a --proxy-pac-file argument.
How to mitigate CVE-2017-17523
Install update from vendor's website.