openEuler 20.03 LTS SP4 update for ghostscript

1) Out-of-bounds write

EUVDB-ID: #VU93860

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-2020-36773

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in devices/vector/gdevtxtw.c. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP4

ghostscript-help: before 9.52-13

ghostscript-debugsource: before 9.52-13

ghostscript-devel: before 9.52-13

ghostscript-debuginfo: before 9.52-13

ghostscript-tools-dvipdf: before 9.52-13

ghostscript: before 9.52-13

CPE2.3

• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP4:*:*:*:*:*:*
• cpe:2.3:o:openeuler:ghostscript-help:*:*:*:*:*:openeuler:*:*
• cpe:2.3:o:openeuler:ghostscript-debugsource:*:*:*:*:*:openeuler:*:*
• cpe:2.3:o:openeuler:ghostscript-devel:*:*:*:*:*:openeuler:*:*
• cpe:2.3:o:openeuler:ghostscript-debuginfo:*:*:*:*:*:openeuler:*:*
• cpe:2.3:o:openeuler:ghostscript-tools-dvipdf:*:*:*:*:*:openeuler:*:*
• cpe:2.3:o:openeuler:ghostscript:*:*:*:*:*:openeuler:*:*

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1463

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.