EulerOS 2.0 SP8 : nss-softokn (EulerOS-SA-2021-1155)

critical Nessus Plugin ID 145774

Synopsis

The remote EulerOS host is missing multiple security updates.

Description

According to the versions of the nss-softokn packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

- In Network Security Services (NSS) before 3.46, several cryptographic primitives had missing length checks. In cases where the application calling the library did not perform a sanity check on the inputs it could result in a crash due to a buffer overflow.(CVE-2019-17006)

- During ECDSA signature generation, padding applied in the nonce designed to ensure constant-time scalar multiplication was removed, resulting in variable-time execution dependent on secret data.(CVE-2020-12401)

- 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-softokn packages.

See Also

http://www.nessus.org/u?391c4fc3

Plugin Details

Severity: Critical

ID: 145774

File Name: EulerOS_SA-2021-1155.nasl

Version: 1.3

Type: local

Published: 2/1/2021

Updated: 1/25/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2019-17006

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:nss-softokn, p-cpe:/a:huawei:euleros:nss-softokn-devel, p-cpe:/a:huawei:euleros:nss-softokn-freebl, p-cpe:/a:huawei:euleros:nss-softokn-freebl-devel, 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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/1/2021

Reference Information

CVE: CVE-2019-17006, CVE-2020-12401, CVE-2020-12402