Remote code execution in Artifex Ghostscript

1) Buffer overflow

EUVDB-ID: #VU74502

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-28879

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing files within BCPEncode, BCPDecode, TBCPEncode, and TBCPDecode methods in base/sbcp.c. A remote attacker can create a specially crafted document, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Ghostscript: 9.00 - 10.01.0

External links

http://bugs.ghostscript.com/show_bug.cgi?id=706494
http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=37ed5022cecd584de868933b5b60da2e995b3179
http://ghostscript.readthedocs.io/en/latest/News.html
http://lists.debian.org/debian-lts-announce/2023/04/msg00003.html
http://www.debian.org/security/2023/dsa-5383

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.