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EulerOS 2.0 SP9 : nss (EulerOS-SA-2021-1952)

medium Nessus Plugin ID 150202

Synopsis

The remote EulerOS host is missing a security update.

Description

According to the version of the nss packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :

 - During RSA key generation, bignum implementations used a variation of the Binary Extended Euclidean Algorithm which entailed significantly input-dependent flow. This allowed an attacker able to perform electromagnetic-based side channel attacks to record traces leading to the recovery of the secret primes.
 *Note:* An unmodified Firefox browser does not generate RSA keys in normal operation and is not affected, but products built on top of it might.(CVE-2020-12402)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected nss package.

See Also

http://www.nessus.org/u?a3265f9f

Plugin Details

Severity: Medium

ID: 150202

File Name: EulerOS_SA-2021-1952.nasl

Version: 1.3

Type: local

Published: 6/3/2021

Updated: 12/27/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 1.2

Temporal Score: 0.9

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

CVSS Score Source: CVE-2020-12402

CVSS v3

Risk Factor: Medium

Base Score: 4.4

Temporal Score: 3.9

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

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:nss, p-cpe:/a:huawei:euleros:nss-softokn, p-cpe:/a:huawei:euleros:nss-util, cpe:/o:huawei:euleros:2.0

Required KB Items: Host/local_checks_enabled, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp

Excluded KB Items: Host/EulerOS/uvp_version

Exploit Ease: No known exploits are available

Patch Publication Date: 6/2/2021

Reference Information

CVE: CVE-2020-12402