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| purl | pkg:pypi/ecdsa@0.13.3 |
| Vulnerability | Summary | Fixed by |
|---|---|---|
|
VCID-ebg3-6ssf-dkcy
Aliases: CVE-2024-23342 GHSA-wj6h-64fc-37mp |
Minerva timing attack on P-256 in python-ecdsa python-ecdsa has been found to be subject to a Minerva timing attack on the P-256 curve. Using the `ecdsa.SigningKey.sign_digest()` API function and timing signatures an attacker can leak the internal nonce which may allow for private key discovery. Both ECDSA signatures, key generation, and ECDH operations are affected. ECDSA signature verification is unaffected. The python-ecdsa project considers side channel attacks out of scope for the project and there is no planned fix. | There are no reported fixed by versions. |
| Vulnerability | Summary | Aliases |
|---|---|---|
| VCID-9pe3-67b4-yqae | 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. |
CVE-2019-14859
GHSA-8qxj-f9rh-9fg2 PYSEC-2020-163 |
| VCID-acg5-4qjn-sudc | 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. |
PYSEC-2020-182
|
| VCID-qrf7-gnjg-bfat | An error-handling flaw was found in python-ecdsa before version 0.13.3. During signature decoding, malformed DER signatures could raise unexpected exceptions (or no exceptions at all), which could lead to a denial of service. |
CVE-2019-14853
GHSA-2mrj-435v-c2cr GHSA-pwfw-mgfj-7g3g PYSEC-2019-177 |