openEuler update for perl-YAML-LibYAML

1) Input validation error

EUVDB-ID: #VU110694

Risk: Medium

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-40908

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to overwrite arbitrary files on the system.

The vulnerability exists due to insufficient validation of user-supplied input in LoadFile method. A remote attacker can pass specially crafted arguments to the affected method and overwrite arbitrary files on the system. 

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP4 - 24.03 LTS SP1

perl-YAML-LibYAML-help: before 0.83-2

perl-YAML-LibYAML-debugsource: before 0.83-2

perl-YAML-LibYAML-debuginfo: before 0.83-2

perl-YAML-LibYAML: before 0.83-2

CPE2.3

• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP4:*:*:*:*:*:*
• cpe:2.3:o:openeuler:openeuler:22.03:LTS SP3:*:*:*:*:*:*
• cpe:2.3:o:openeuler:openeuler:22.03:LTS SP4:*:*:*:*:*:*
• cpe:2.3:a:openeuler:perl-yaml-libyaml-help:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:perl-yaml-libyaml-debugsource:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:perl-yaml-libyaml-debuginfo:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:perl-yaml-libyaml:*:*:*:*:*:openeuler:*:*

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2025-1591

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.