#VU33701 Buffer overflow in Ghostscript - CVE-2020-15900
Published: August 4, 2020
Vulnerability identifier: #VU33701
Vulnerability risk: High
CVSSv4.0: 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/E:U/U:Amber
CVE-ID: CVE-2020-15900
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Ghostscript
Ghostscript
Software vendor:
Artifex Software, Inc.
Artifex Software, Inc.
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when use of a non-standard PostScript operator can allow overriding of file access controls. A remote attacker can trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install updates from vendor's website.
External links
- http://git.ghostscript.com/?p=ghostpdl.git;a=log
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00004.html
- https://artifex.com/security-advisories/CVE-2020-15900
- https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=5d499272b95a6b890a1397e11d20937de000d31b
- https://github.com/ArtifexSoftware/ghostpdl/commit/5d499272b95a6b890a1397e11d20937de000d31b
- https://github.com/ArtifexSoftware/ghostpdl/commits/master/psi/zstring.c