CVE-2020-12607

An issue was discovered in fastecdsa before 2.1.2. When using the NIST P-256 curve in the ECDSA implementation, the point at infinity is mishandled. This means that for an extreme value in k and s^-1, the signature verification fails even if the signature is correct. This behavior is not solely a...

Code injection

An issue was discovered in fastecdsa before 2.1.2. When using the NIST P-256 curve in the ECDSA implementation, the point at infinity is mishandled. This means that for an extreme value in k and s^-1, the signature verification fails even if the signature is correct. This behavior is not solely a...

PYSEC-2020-42

An issue was discovered in fastecdsa before 2.1.2. When using the NIST P-256 curve in the ECDSA implementation, the point at infinity is mishandled. This means that for an extreme value in k and s^-1, the signature verification fails even if the signature is correct. This behavior is not solely a...

PYSEC-2020-42

An issue was discovered in fastecdsa before 2.1.2. When using the NIST P-256 curve in the ECDSA implementation, the point at infinity is mishandled. This means that for an extreme value in k and s^-1, the signature verification fails even if the signature is correct. This behavior is not solely a...

CVE-2020-12607

An issue was discovered in fastecdsa before 2.1.2. When using the NIST P-256 curve in the ECDSA implementation, the point at infinity is mishandled. This means that for an extreme value in k and s^-1, the signature verification fails even if the signature is correct. This behavior is not solely a...

CVE-2020-12607

CVE-2020-12607 affects the fastecdsa library prior to 2.1.2, where using the NIST P-256 curve in the ECDSA implementation mishandles the point at infinity during signature verification. This can cause verification to fail for an otherwise valid signature when extreme values occur for k and s^-1, ...

PT-2020-13166 · Fastecdsa · Fastecdsa

Name of the Vulnerable Software and Affected Versions: fastecdsa versions prior to 2.1.2 Description: An issue was discovered in the ECDSA implementation when using the NIST P-256 curve. The point at infinity is mishandled, which means that for extreme values in k and s^-1, the signature...

Ubuntu 16.04 LTS / 18.04 LTS : OpenSSL vulnerabilities (USN-4376-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4376-1 advisory. Cesar Pereida Garca, Sohaib ul Hassan, Nicola Tuveri, Iaroslav Gridin, Alejandro Cabrera Aldaya, and Billy Brumley discovered that OpenSSL...

Ubuntu: Security Advisory (USN-4376-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2020 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...

USN-4376-1: OpenSSL vulnerabilities

Cesar Pereida García, Sohaib ul Hassan, Nicola Tuveri, Iaroslav Gridin, Alejandro Cabrera Aldaya, and Billy Brumley discovered that OpenSSL incorrectly handled ECDSA signatures. An attacker could possibly use this issue to perform a timing side-channel attack and recover private ECDSA keys...

openssl: side-channel weak encryption vulnerability

Normally in OpenSSL EC groups always have a co-factor present and this is used in side channel resistant code paths. However, in some cases, it is possible to construct a group using explicit parameters instead of using a named curve. In those cases it is possible that such a group does not have...

Security Bulletin: OpenSSL vulnerabilites (CVE-2019-1563, CVE-2019-1547) impacting IBM Aspera High-Speed Transfer Server 3.9.1, Aspera High-Speed Transfer Endpoint, Aspera Desktop Client 3.9.1 and earlier

Summary OpenSSL vulnerabilites CVE-2019-1563, CVE-2019-1547 impacting IBM Aspera High-Speed Transfer Server 3.9.1, Aspera High-Speed Transfer Endpoint 3.9.1, Aspera Desktop Client 3.9.1 and earlier. The fix is delivered in IBM Aspera High-Speed Transfer Server 3.9.6, Aspera High-Speed Transfer...

Unspecified vulnerability in Binance tss-lib

Binance tss-lib is an open source implementation of the multi-party t, n threshold ECDSA Elliptic Curve Digital Signature Algorithm and EdDSA Edwards Curve Digital Signature Algorithm based on the Gennaro and Goldfeder CCS 2018 1. A security vulnerability exists in the keygen protocol...

The vulnerability of the Python ECDSA cryptographic library, related to insufficient processing of exceptional states, allows a perpetrator to trigger a service failure.

The vulnerability of the Python ECDSA cryptographic library involves simultaneous operations using a shared resource with incorrect synchronization. Exploiting this vulnerability can allow a remote attacker to cause service failures...

FreeBSD : Mbed TLS -- Side channel attack on ECDSA (bf1f47c4-7f1b-11ea-bf94-001cc0382b2f)

Manuel Pegourie-Gonnard reports : An attacker with access to precise enough timing and memory access information typically an untrusted operating system attacking a secure enclave such as SGX or the TrustZone secure world can fully recover an ECDSA private key after observing a number of signatur...

CVE-2020-1026

A Security Feature Bypass vulnerability exists in the MSR JavaScript Cryptography Library that is caused by multiple bugs in the library’s Elliptic Curve Cryptography ECC implementation.An attacker could potentially abuse these bugs to learn information about a server’s private ECC key a key...

Security feature bypass

A Security Feature Bypass vulnerability exists in the MSR JavaScript Cryptography Library that is caused by multiple bugs in the library’s Elliptic Curve Cryptography ECC implementation.An attacker could potentially abuse these bugs to learn information about a server’s private ECC key a key...

CVE-2020-1026

The CVE-2020-1026 issue affects the MSR JavaScript Cryptography Library’s ECC implementation. It results from multiple bugs in ECC code, enabling an attacker to potentially leak a server’s private ECC key (key leakage attack) or craft an invalid ECDSA signature that passes as valid. The vulnerabi...

CVE-2020-10932

An issue was discovered in Arm Mbed TLS before 2.16.6 and 2.7.x before 2.7.15. An attacker that can get precise enough side-channel measurements can recover the long-term ECDSA private key by 1 reconstructing the projective coordinate of the result of scalar multiplication by exploiting side...

CVE-2020-10932

An issue was discovered in Arm Mbed TLS before 2.16.6 and 2.7.x before 2.7.15. An attacker that can get precise enough side-channel measurements can recover the long-term ECDSA private key by 1 reconstructing the projective coordinate of the result of scalar multiplication by exploiting side...