CVE-2021-43568

Source
https://cve.org/CVERecord?id=CVE-2021-43568
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43568.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-43568
Aliases
Published
2021-11-09T22:15:07Z
Modified
2026-10-20T10:54:09Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

The verify function in the Stark Bank Elixir ECDSA library (ecdsa-elixir) 1.0.0 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.

References

Affected packages

Git / github.com/starkbank/ecdsa-elixir

Affected ranges

Type
GIT
Repo
https://github.com/starkbank/ecdsa-elixir
Events
Database specific
Show details
{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:starkbank:elixir_ecdsa:1.0.0:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "1.0.0"
                },
                {
                    "last_affected":  "1.0.0"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "original_tag":  "v1.0.1",
            "range":  [
                {
                    "fixed":  "5c3152e95dbea47f92185fdab8be4030d9b86c2c"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

1.*
1.0.0
v1.*
v1.0.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43568.json"