#VU85892 Integer overflow in Ghostscript - CVE-2023-38560

Vulnerability identifier: #VU85892

Vulnerability risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-38560

CWE-ID: CWE-190

Exploitation vector: Network

Exploit availability: No

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

Vendor: Artifex Software, Inc.

Description

The vulnerability allows a remote attacker to crash the application.

The vulnerability exists due to integer overflow within the pl_glyph_name() function in pcl/pl/plfont.c when converting PCL files to PDF format. A remote attacker can pass a specially crafted PLC file to the application, trigger an integer overflow and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Ghostscript: 9.18 - 10.01.2

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External links
https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=b7eb1d0174c
https://access.redhat.com/security/cve/CVE-2023-38560
https://bugzilla.redhat.com/show_bug.cgi?id=2224368
https://bugs.ghostscript.com/show_bug.cgi?id=706898

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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.