CVE-2024-23342 python-ecdsa vulnerable to Minerva attack on P-256

The ecdsa PyPI package is a pure Python implementation of ECC Elliptic Curve Cryptography with support for ECDSA Elliptic Curve Digital Signature Algorithm, EdDSA Edwards-curve Digital Signature Algorithm and ECDH Elliptic Curve Diffie-Hellman. Versions 0.18.0 and prior are vulnerable to the...

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.signdigest 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...

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.signdigest 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...

Amazon Linux AMI : python-ecdsa (ALAS-2023-1800)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2023-1800 advisory. 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...

Important: python-ecdsa

Issue Overview: 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 A flaw was found in all python-ecdsa...

SUSE CVE-2019-14853

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...

SUSE CVE-2019-14859

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...

Mageia: Security Advisory (MGASA-2020-0002)

The remote host is missing an update for the SPDX-FileCopyrightText: 2022 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

python-ecdsa: Unexpected and undocumented exceptions during signature decoding

An error-handling flaw was found in python-ecdsa. During signature decoding, malformed DER signatures could raise unexpected exceptions or no exceptions at all, which could lead to a denial of service...

python-ecdsa: DER encoding is not being verified in signatures

A flaw was found in python-ecdsa, 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...

Stark Bank Data Forgery Issue Vulnerability (CNVD-2021-95644)

Stark Bank is a banking API for individual developers in Brazil that performs all banking operations through the API, simplifying and automating payments, facilitating reconciliations, and scaling operations. a data forgery issue vulnerability exists in Stark Bank python-ecdsa, which stems from t...

GHSA-92VM-MXJF-JQF3 Improper Verification of Cryptographic Signature in starkbank-ecdsa

The verify function in the Stark Bank Python ECDSA library starkbank-ecdsa 2.0.0 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages...

CVE-2021-43572

The verify function in the Stark Bank Python ECDSA library aka starkbank-escada or ecdsa-python before 2.0.1 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages...

CVE-2021-43572: Improper Verification of Cryptographic Signature

The verify function in the Stark Bank Python ECDSA library aka starkbank-escada or ecdsa-python before 2.0.1 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages...

PT-2021-23877

Name of the Vulnerable Software and Affected Versions Stark Bank Python ECDSA library versions 2.0.0 through 2.0.0 Description The verify function in the Stark Bank Python ECDSA library fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages...

Stark Bank 数据伪造问题漏洞

Stark Bank is a banking API for individual developers in Brazil that performs all banking operations through the API, simplifying and automating payments, facilitating reconciliations, and scaling operations. a data forgery issue vulnerability exists in Stark Bank python-ecdsa, which stems from t...

Huawei EulerOS: Security Advisory for python-ecdsa (EulerOS-SA-2021-2429)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

EulerOS 2.0 SP2 : python-ecdsa (EulerOS-SA-2021-2429)

According to the version of the python-ecdsa package installed, the EulerOS installation on the remote host is affected by the following vulnerability : - 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...

EulerOS Virtualization 3.0.2.2 : python-ecdsa (EulerOS-SA-2021-2161)

According to the version of the python-ecdsa package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerability : - This is an easy-to-use implementation of ECDSA cryptography Elliptic Curve Digital Signature Algorithm, implemented purely in...

SUSE: Security Advisory (SUSE-SU-2019:2891-2)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...