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LIN9-6969 : Security Advisory - libgcrypt - CVE-2018-0495

Created: Jun 15, 2018    Updated: Dec 3, 2018
Resolved Date: Jul 5, 2018
Found In Version: 9.0.0.16
Fix Version: 9.0.0.17
Severity: Standard
Applicable for: Wind River Linux 9
Component/s: Userspace

Description

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.

https://nvd.nist.gov/vuln/detail/CVE-2018-0495

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