pysec-2020-163
Vulnerability from pysec
Published
2020-01-02 15:15
Modified
2020-12-08 18:32
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.
Aliases
{ "affected": [ { "package": { "ecosystem": "PyPI", "name": "ecdsa", "purl": "pkg:pypi/ecdsa" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "0.13.3" } ], "type": "ECOSYSTEM" } ], "versions": [ "0.6", "0.7", "0.8", "0.9", "0.10", "0.11", "0.12", "0.13", "0.13.1", "0.13.2" ] } ], "aliases": [ "CVE-2019-14859", "GHSA-8qxj-f9rh-9fg2" ], "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.", "id": "PYSEC-2020-163", "modified": "2020-12-08T18:32:00Z", "published": "2020-01-02T15:15:00Z", "references": [ { "type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14859" }, { "type": "WEB", "url": "https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3" }, { "type": "REPORT", "url": "https://github.com/warner/python-ecdsa/issues/114" }, { "type": "PACKAGE", "url": "https://pypi.org/project/ecdsa/0.13.3/" }, { "type": "ADVISORY", "url": "https://github.com/advisories/GHSA-8qxj-f9rh-9fg2" } ] }
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.