Argument injection attack in LilyPond - CVE-2018-10992
Published: May 21, 2018
Vulnerability identifier: #VU12895
CSH Severity: Low
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-10992
CWE-ID: CWE-88
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary commands on the target system.
The weakness exists in lilypond-invoke-editor due to improper validation of strings before launching the program specified by the BROWSER environment variable. A remote attacker can conduct argument-injection attacks via a specially crafted URL, as demonstrated by a --proxy-pac-file argument, because the GNU Guile code uses the system Scheme procedure instead of the system* Scheme procedure.
The weakness exists in lilypond-invoke-editor due to improper validation of strings before launching the program specified by the BROWSER environment variable. A remote attacker can conduct argument-injection attacks via a specially crafted URL, as demonstrated by a --proxy-pac-file argument, because the GNU Guile code uses the system Scheme procedure instead of the system* Scheme procedure.
Affected software
LilyPond
openSUSE Leap
openSUSE Leap
How to mitigate CVE-2018-10992
Install update from vendor's website.