CVE-2019-14859 in Python Ecdsaproject and Red Hat Products
Published on January 2, 2020
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.
Weakness Type
Improper Verification of Cryptographic Signature
The software does not verify, or incorrectly verifies, the cryptographic signature for data.
Products Associated with CVE-2019-14859
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Affected Versions
Red Hat python-ecdsa Version all python-ecdsa versions before 0.13.3 is affected by CVE-2019-14859Exploit Probability
EPSS
0.07%
Percentile
20.29%
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.