CVE-2021-43568

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Source
https://cve.org/CVERecord?id=CVE-2021-43568
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-43568.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-43568
Aliases
Published
2021-11-09T22:15:07Z
Modified
2026-08-03T11:46:57Z
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.

Database specific 
{
    "unresolved_ranges": [
        {
            "cpes": [
                "cpe:2.3:a:starkbank:elixir_ecdsa:1.0.0:*:*:*:*:*:*:*"
            ],
            "extracted_events": [
                {
                    "introduced": "1.0.0"
                },
                {
                    "last_affected": "1.0.0"
                }
            ],
            "source": "CPE_STRING",
            "vendor_product": "starkbank:elixir_ecdsa"
        }
    ]
}
References

Affected packages

Git / github.com/starkbank/ecdsa-elixir

Affected ranges

Type
GIT
Repo
https://github.com/starkbank/ecdsa-elixir
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
5c3152e95dbea47f92185fdab8be4030d9b86c2c
Database specific
Show details 
{
    "source": "REFERENCES"
}

Affected versions

v1.*
v1.0.0

Database specific

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