UBUNTU-CVE-2022-50237

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Source

https://ubuntu.com/security/CVE-2022-50237

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-50237.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2022-50237

Upstream

CVE-2022-50237

Published

2025-07-28T02:15:00Z

Modified

2026-05-20T16:11:48.655325120Z

Severity

5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

The ed25519-dalek crate before 2 for Rust allows a double public key signing function oracle attack. The Keypair implementation leads to a simple computation for extracting a private key.

References

Affected packages

Ubuntu:25.10 / rust-curve25519-dalek

Package

Name: rust-curve25519-dalek
Purl: pkg:deb/ubuntu/rust-curve25519-dalek?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.1.3+20240618+dfsg-9

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "librust-curve25519-dalek-derive-dev",
            "binary_version": "0.1.1+4.1.3+20240618+dfsg-9"
        },
        {
            "binary_name": "librust-curve25519-dalek-dev",
            "binary_version": "4.1.3+4.1.3+20240618+dfsg-9"
        },
        {
            "binary_name": "librust-ed25519-dalek-dev",
            "binary_version": "2.1.1+4.1.3+20240618+dfsg-9"
        },
        {
            "binary_name": "librust-x25519-dalek-dev",
            "binary_version": "2.0.1+4.1.3+20240618+dfsg-9"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-50237.json"

Ubuntu:26.04:LTS / rust-curve25519-dalek