CVE-2018-20187

A side-channel issue was discovered in Botan before 2.9.0. An attacker capable of precisely measuring the time taken for ECC key generation may be able to derive information about the high bits of the secret key, as the function to derive the public point from the secret scalar uses an unblinded...

CVE-2018-20187

The CVE-2018-20187 issue affects Botan before 2.9.0. It is a side‑channel vulnerability in ECC key generation: an attacker who can precisely measure the time to generate the secret key could deduce information about the high bits of the secret key because the public-point derivation uses an unbli...

CVE-2018-20187

A side-channel issue was discovered in Botan before 2.9.0. An attacker capable of precisely measuring the time taken for ECC key generation may be able to derive information about the high bits of the secret key, as the function to derive the public point from the secret scalar uses an unblinded...

CVE-2018-20187

A side-channel issue was discovered in Botan before 2.9.0. An attacker capable of precisely measuring the time taken for ECC key generation may be able to derive information about the high bits of the secret key, as the function to derive the public point from the secret scalar uses an unblinded...

CVE-2018-20187

A side-channel issue was discovered in Botan before 2.9.0. An attacker capable of precisely measuring the time taken for ECC key generation may be able to derive information about the high bits of the secret key, as the function to derive the public point from the secret scalar uses an unblinded...

FreeBSD : botan2 -- Side channel during ECC key generation (d8e7e854-17fa-11e9-bef6-6805ca2fa271)

botan2 developers reports : A timing side channel during ECC key generation could leak information about the high bits of the secret scalar. Such information allows an attacker to perform a brute-force attack on the key somewhat more efficiently than they would otherwise. Found by Jan Jancar usin...

Spoofable ECDSA Signatures

nss-softokn is vulnerable to spoofable ECDSA signatures. The vulnerability exists as Mozilla Network Security Services NSS before 3.19.1, as used in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, and other products, does not properly perform Elliptical Curve...

Fedora 28 : botan2 (2018-eaa7de17ae)

Update Botan2 to 2.7.0. Focus of this release is on performance and side channel hardening. - Address side channels in RSA key generation and ECDSA signing - Side channel hardening in many core algorithms modular exponentiation, ECC scalar multiply, Karatsuba multiplication, Barrett reduction, et...

SUSE SLED15 / SLES15 Security Update : opensc (SUSE-SU-2018:3629-1)

This update for opensc fixes the following security issues : CVE-2018-16391: Fixed a denial of service when handling responses from a Muscle Card bsc1106998 CVE-2018-16392: Fixed a denial of service when handling responses from a TCOS Card bsc1106999 CVE-2018-16393: Fixed buffer overflows when...

botan2 -- Side channel during ECC key generation

botan2 developers reports: A timing side channel during ECC key generation could leak information about the high bits of the secret scalar. Such information allows an attacker to perform a brute force attack on the key somewhat more efficiently than they would otherwise. Found by Ján Jančár using...

[ASA-201812-8] openssl-1.0: private key recovery

Arch Linux Security Advisory ASA-201812-8 ========================================= Severity: Low Date : 2018-12-08 CVE-ID : CVE-2018-0734 CVE-2018-5407 Package : openssl-1.0 Type : private key recovery Remote : Yes Link : https://security.archlinux.org/AVG-807 Summary ======= The package...

[ASA-201812-7] lib32-openssl-1.0: private key recovery

Arch Linux Security Advisory ASA-201812-7 ========================================= Severity: Low Date : 2018-12-08 CVE-ID : CVE-2018-0734 CVE-2018-5407 Package : lib32-openssl-1.0 Type : private key recovery Remote : Yes Link : https://security.archlinux.org/AVG-806 Summary ======= The package...

Timing Attack

openssl is vulnerable to Timing Attack. An attacker with access to mount a local timing attack during the ECDSA signature generation is able to exploit the vulnerability in the ECC scalar mmultiplication to recover the private key...

OpenSSL: Microarchitecture timing vulnerability in ECC scalar multiplication (CVE-2018-5407) - Linux

OpenSSL is prone to an information disclosure vulnerability. SPDX-FileCopyrightText: 2018 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 CPE = "cpe:/a:openssl:openssl";...

OpenSSL: Microarchitecture timing vulnerability in ECC scalar multiplication (CVE-2018-5407) - Windows

OpenSSL is prone to an information disclosure vulnerability. SPDX-FileCopyrightText: 2018 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 CPE = "cpe:/a:openssl:openssl";...

FreeBSD : OpenSSL -- timing vulnerability (6f170cf2-e6b7-11e8-a9a8-b499baebfeaf)

The OpenSSL project reports : Microarchitecture timing vulnerability in ECC scalar multiplication. Severity: Low OpenSSL ECC scalar multiplication, used in e.g. ECDSA and ECDH, has been shown to be vulnerable to a microarchitecture timing side channel attack. An attacker with sufficient access to...

OpenSSL -- timing vulnerability

The OpenSSL project reports: Microarchitecture timing vulnerability in ECC scalar multiplication. Severity: Low OpenSSL ECC scalar multiplication, used in e.g. ECDSA and ECDH, has been shown to be vulnerable to a microarchitecture timing side channel attack. An attacker with sufficient access to...

Security update for opensc (moderate)

This update for opensc fixes the following issues: - CVE-2018-16391: Fixed a denial of service when handling responses from a Muscle Card bsc1106998 - CVE-2018-16392: Fixed a denial of service when handling responses from a TCOS Card bsc1106999 - CVE-2018-16393: Fixed buffer overflows when handli...

Intel (Skylake / Kaby Lake) - PortSmash CPU SMT Side-Channel Exploit

Exploit for hardware platform in category local exploits Intel Skylake / Kaby Lake - PortSmash CPU SMT Side-Channel Exploit Summary This is a proof-of-concept exploit of the PortSmash microarchitecture attack, tracked by CVE-2018-5407. Setup Prerequisites A CPU featuring SMT e.g. Hyper-Threading ...

Vulnerability in OpenSSL - Microarchitecture timing vulnerability in ECC scalar multiplication

OpenSSL ECC scalar multiplication, used in e.g. ECDSA and ECDH, has been shown to be vulnerable to a microarchitecture timing side channel attack. An attacker with sufficient access to mount local timing attacks during ECDSA signature generation could recover the private key. Found by Alejandro...