#VU46148 Security restrictions bypass in LilyPond - CVE-2020-17353
Published: August 31, 2020
Vulnerability identifier: #VU46148
Vulnerability risk: High
CVSSv4.0: 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-2020-17353
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
LilyPond
LilyPond
Software vendor:
LilyPond
LilyPond
Description
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to application does not properly impose security restrictions on on embedded-ps and embedded-svg, when -dsafe is used. A remote attacker can create a specially crafted PostScript file, pass it to the affected application, bypass imposed security restrictions and execute arbitrary code on the target system.
Remediation
Install updates from vendor's website.
External links
- http://git.savannah.gnu.org/gitweb/?p=lilypond.git;a=commit;h=b84ea4740f3279516905c5db05f4074e777c16ff
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QG2JUV4UTIA27JUE6IZLCEFP5PYSFPF4/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W2JYMVLTPSNYS5F7TBHKIXUZZJIJAMRX/
- https://www.debian.org/security/2020/dsa-4756