Debian DSA-3959-1 : libgcrypt20 - security update

high Nessus Plugin ID 102826

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Synopsis

The remote Debian host is missing a security-related update.

Description

Daniel Genkin, Luke Valenta and Yuval Yarom discovered that Libgcrypt is prone to a local side-channel attack against the ECDH encryption with Curve25519, allowing recovery of the private key.

See https://eprint.iacr.org/2017/806 for details.

Solution

Upgrade the libgcrypt20 packages.

For the stable distribution (stretch), this problem has been fixed in version 1.7.6-2+deb9u2.

Plugin Details

Severity: High

ID: 102826

File Name: debian_DSA-3959.nasl

Version: 3.5

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 8/30/2017

Updated: 1/4/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS v3

Risk Factor: High

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libgcrypt20, cpe:/o:debian:debian_linux:9.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Patch Publication Date: 8/29/2017

Reference Information

CVE: CVE-2017-0379

DSA: 3959

Detections

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