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...

MSR JavaScript Cryptography Library Security Feature Bypass Vulnerability

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...

Mbed TLS -- Side channel attack on ECDSA

Manuel Pégourié-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 signature...

The vulnerability of the Python ECDSA cryptographic library, related to improper verification of the cryptographic signature, allows a perpetrator to compromise the confidentiality and integrity of the protected information.

The vulnerability of the Python ECDSA cryptographic library is related to improper verification of the cryptographic signature. Exploiting this vulnerability could allow a malicious actor, operating remotely, to compromise the confidentiality and integrity of the protected information...

Timing Attack

jsrsasign is vulnerable to timing attack. A timing attack can be performed to discover the private key due to the usage of an unsafe method for ECDSA key generation and signing in the signHex function...

Timing Attack

Overview Versions of jsrsasign are vulnerable to Timing Attacks. The signHex function uses a timing-unsafe method for ECDSA key generation and signing. This leaks the length of the scalar, which attackers may use to brute-force the private key. Timing attacks can be used to increase the efficienc...

Improper Verification of Cryptographic Signature in Pure-Python ECDSA

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...

GHSA-8QXJ-F9RH-9FG2 Improper Verification of Cryptographic Signature in Pure-Python ECDSA

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...

ROHNP: Key Extraction Side Channel in Multiple Crypto Libraries

Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the gcryeccecdsasign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. T...

Amazon Linux 2 : openssl (ALAS-2020-1406)

The version of openssl installed on the remote host is prior to 1.0.2k-19. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2020-1406 advisory. Normally in OpenSSL EC groups always have a co-factor present and this is used in side channel resistant code paths...

Security Bulletin: Multiple vulnerabilities in OpenSSL affect IBM Integration Bus , IBM App Connect and WebSphere Message Broker

Summary Multiple vulnerabilities in OpenSSL affect IBM Integration Bus , IBM App Connect and WebSphere Message Broker. The DataDirect ODBC Drivers used by IBM App Connect , IBM Integration Bus and WebSphere Message Broker have addressed the applicable CVEs. Vulnerability Details CVEID:...

Important: openssl

Issue Overview: 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 grou...

EulerOS Virtualization 3.0.2.2 : openssl (EulerOS-SA-2020-1274)

According to the versions of the openssl packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - In situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker,...

Amazon Linux AMI : nss, nss-softokn, nss-util, nspr (ALAS-2020-1355)

The version of nspr installed on the remote host is prior to 4.21.0-1.43. The version of nss installed on the remote host is prior to 3.44.0-7.84. The version of nss-softokn installed on the remote host is prior to 3.44.0-8.44. The version of nss-util installed on the remote host is prior to...

Security Bulletin: OpenSSL publicly disclosed vulnerability

Summary IBM MobileFirst Platform Foundation has addressed the following vulnerabilityies by updating the version of OpenSSL. Vulnerability Details CVEID: CVE-2019-1563 DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by a padding oracle attack in...

EulerOS Virtualization for ARM 64 3.0.2.0 : nss-softokn (EulerOS-SA-2020-1252)

According to the versions of the nss-softokn packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - A cached side channel attack during handshakes using RSA encryption could allow for the decryption of encrypted...

EulerOS Virtualization for ARM 64 3.0.2.0 : openssl (EulerOS-SA-2020-1221)

According to the versions of the openssl packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - In situations where an attacker receives automated notification of the success or failure of a decryption attempt an...

[ASA-202003-7] mbedtls: private key recovery

Arch Linux Security Advisory ASA-202003-7 ========================================= Severity: High Date : 2020-03-11 CVE-ID : CVE-2019-18222 Package : mbedtls Type : private key recovery Remote : No Link : https://security.archlinux.org/AVG-1104 Summary ======= The package mbedtls before version...

Updated mbedtls packages fix security vulnerabilities

Updated mbedtls packages fix security vulnerabilities: If Mbed TLS is running in an SGX enclave and the adversary has control of the main operating system, they can launch a side channel attack to recover the RSA private key when it is being imported. Found by Alejandro Cabrera Aldaya and Billy...

MGASA-2020-0130 Updated mbedtls packages fix security vulnerabilities

Updated mbedtls packages fix security vulnerabilities: If Mbed TLS is running in an SGX enclave and the adversary has control of the main operating system, they can launch a side channel attack to recover the RSA private key when it is being imported. Found by Alejandro Cabrera Aldaya and Billy...