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

medium Nessus Plugin ID 118901

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Synopsis

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

Description

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 mount local timing attacks during ECDSA signature generation could recover the private key.

Solution

Update the affected package.

See Also

https://www.openssl.org/news/secadv/20181112.txt

http://www.nessus.org/u?c74d652e

Plugin Details

Severity: Medium

ID: 118901

File Name: freebsd_pkg_6f170cf2e6b711e8a9a8b499baebfeaf.nasl

Version: 1.3

Type: local

Published: 11/13/2018

Updated: 4/5/2019

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 1.9

Temporal Score: 1.5

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

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

CVSS v3

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 4.2

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*, p-cpe:2.3:a:freebsd:freebsd:openssl:*:*:*:*:*:*:*

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/12/2018

Vulnerability Publication Date: 11/12/2018

Reference Information

CVE: CVE-2018-5407