#VU81977 Use of Potentially Dangerous Function in Ghostscript - CVE-2023-43115

Vulnerability identifier: #VU81977

Vulnerability risk: High

CVSSv4.0: 7.3 [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:P/U:Amber]

CVE-ID: CVE-2023-43115

CWE-ID: CWE-676

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Ghostscript
Universal components / Libraries / Libraries used by multiple products

Vendor: Artifex Software, Inc.

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists in gdevijs.c in GhostPDL due to the way PostScript handles IJS device change. A remote attacker can trick the victim to open a specially crafted document that will switch to the IJS device, start the IJS server and execute arbitrary commands on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Ghostscript: 10.0.0 - 10.01.2

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External links
https://bugs.ghostscript.com/show_bug.cgi?id=707051
https://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=e59216049cac290fb437a04c4f41ea46826cfba5
https://ghostscript.com/

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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. However, proof of concept for this vulnerability is available.