openEuler 20.03 LTS SP3 update for ghostscript

1) Use of Potentially Dangerous Function

EUVDB-ID: #VU81977

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 - Use of Potentially Dangerous Function

Exploit availability: Yes

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 repository.

Vulnerable software versions

openEuler: 20.03 LTS SP3

ghostscript-help: before 9.52-11

ghostscript-debugsource: before 9.52-11

ghostscript-debuginfo: before 9.52-11

ghostscript-devel: before 9.52-11

ghostscript-tools-dvipdf: before 9.52-11

ghostscript: before 9.52-11

CPE2.3

• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP3:*:*:*:*:*:*
• cpe:2.3:a:openeuler:ghostscript-help:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:ghostscript-debugsource:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:ghostscript-debuginfo:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:ghostscript-devel:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:ghostscript-tools-dvipdf:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:ghostscript:*:*:*:*:*:openeuler:*:*

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1695

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.