Remote code execution in Artifex Ghostscript
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-15900 |
| CWE-ID | CWE-119 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Ghostscript Universal components / Libraries / Libraries used by multiple products |
| Vendor | Artifex Software, Inc. |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Buffer overflow
EUVDB-ID: #VU33701
Risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-15900
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsGhostscript: 9.50 - 9.52
External linkshttp://git.ghostscript.com/?p=ghostpdl.git;a=log
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00004.html
http://artifex.com/security-advisories/CVE-2020-15900
http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=5d499272b95a6b890a1397e11d20937de000d31b
http://github.com/ArtifexSoftware/ghostpdl/commit/5d499272b95a6b890a1397e11d20937de000d31b
http://github.com/ArtifexSoftware/ghostpdl/commits/master/psi/zstring.c
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
