Ubuntu update for ghostscript

1) Input validation error

EUVDB-ID: #VU108119

Risk: High

CVSSv4.0: 6.1 [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:U/U:Amber]

CVE-ID: CVE-2025-46646

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to improper validation of overlong UTF-8 encoding in decode_utf8 in base/gp_utf8.c A remote attacker can pass a specially crafted file to the application and execute arbitrary code on the system.

Note, the vulnerability exists due to incomplete fix for #VU99620 (CVE-2024-46954).

Mitigation

Update the affected package ghostscript to the latest version.

Vulnerable software versions

Ubuntu: 24.04 - 24.10

libgs10 (Ubuntu package): before 10.02.1~dfsg1-0ubuntu7.6

ghostscript (Ubuntu package): before 10.02.1~dfsg1-0ubuntu7.6

CPE2.3

• cpe:2.3:o:canonical:ubuntu:24.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu:24.10:*:*:*:*:*:*:*
• cpe:2.3:a:canonical:libgs10_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:ghostscript_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

https://ubuntu.com/security/notices/USN-7473-1

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.