openEuler 20.03 LTS update for ghostscript

1) Buffer overflow

EUVDB-ID: #VU33701

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-15900

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 use of a non-standard PostScript operator can allow overriding of file access controls. A remote attacker can 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 repository.

Vulnerable software versions

openEuler: 20.03 LTS

ghostscript-help: before 9.52-4

ghostscript-debuginfo: before 9.52-4

ghostscript-debugsource: before 9.52-4

ghostscript-tools-dvipdf: before 9.52-4

ghostscript-devel: before 9.52-4

ghostscript: before 9.52-4

CPE2.3

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

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2020-1087

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.