CVE-2019-14859
- Source
- https://cve.org/CVERecord?id=CVE-2019-14859
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-14859.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2019-14859
- Aliases
- Downstream
- Related
- Published
- 2020-01-02T15:15:11.960Z
- Modified
- 2026-03-14T09:34:02.774809Z
- Severity
-
- 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
A flaw was found in all python-ecdsa versions before 0.13.3, where it did not correctly verify whether signatures used DER encoding. Without this verification, a malformed signature could be accepted, making the signature malleable. Without proper verification, an attacker could use a malleable signature to create false transactions.
- References
Affected packages
Git / github.com/tlsfuzzer/python-ecdsa
Affected versions
python-ecdsa-0.*
python-ecdsa-0.10
python-ecdsa-0.11
python-ecdsa-0.12
python-ecdsa-0.13
python-ecdsa-0.13.1
python-ecdsa-0.13.2
python-ecdsa-0.5
python-ecdsa-0.6
python-ecdsa-0.7
python-ecdsa-0.8
python-ecdsa-0.9
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-14859.json"
unresolved_ranges
[
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2.0"
}
]
},
{
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"introduced": "0"
},
{
"last_affected": "3.0"
}
]
},
{
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},
{
"last_affected": "10"
}
]
},
{
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},
{
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},
{
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},
{
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{
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}
]
}
]