openEuler update for ed25519-java

1) Improper Verification of Cryptographic Signature

EUVDB-ID: #VU105889

Risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-36843

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

Exploit availability: No

Description

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

The vulnerability exists due to the EdDSA implementation in affected plugin exhibits signature malleability. A remote user can create new valid signatures different from previous signatures for a known message.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP4 - 24.03 LTS

ed25519-java-javadoc: before 0.3.0-5

ed25519-java: before 0.3.0-5

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:o:openeuler:ed25519-java-javadoc:*:*:*:*:*:openeuler:*:*
• cpe:2.3:o:openeuler:ed25519-java:*:*:*:*:*:openeuler:*:*

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2025-1334

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.