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SUSE-SU-2018:1993-1

Опубликовано: 19 июл. 2018
Источник: suse-cvrf

Описание

Security update for libgcrypt

This update for libgcrypt fixes the following issue:

The following security issue was fixed:

  • CVE-2018-0495: Fixed a novel side-channel attack, by enabling blinding for ECDSA signatures (bsc#1097410)

Список пакетов

SUSE Linux Enterprise Module for Basesystem 15
libgcrypt-devel-1.8.2-6.3.1
libgcrypt20-1.8.2-6.3.1
libgcrypt20-32bit-1.8.2-6.3.1
libgcrypt20-hmac-1.8.2-6.3.1
libgcrypt20-hmac-32bit-1.8.2-6.3.1

Ссылки

Описание

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 _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.

Затронутые продукты
SUSE Linux Enterprise Module for Basesystem 15:libgcrypt-devel-1.8.2-6.3.1
SUSE Linux Enterprise Module for Basesystem 15:libgcrypt20-1.8.2-6.3.1
SUSE Linux Enterprise Module for Basesystem 15:libgcrypt20-32bit-1.8.2-6.3.1
SUSE Linux Enterprise Module for Basesystem 15:libgcrypt20-hmac-1.8.2-6.3.1
Ссылки