Oracle Linux 8 : nss (ELSA-2021-0538)

medium Nessus Plugin ID 146580
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VPR Score: 5.6

Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-0538 advisory.

- nss: CHACHA20-POLY1305 decryption with undersized tag leads to out-of-bounds read (CVE-2020-12403)

- When performing EC scalar point multiplication, the wNAF point multiplication algorithm was used; which leaked partial information about the nonce used during signature generation. Given an electro-magnetic trace of a few signature generations, the private key could have been computed. This vulnerability affects Firefox < 80 and Firefox for Android < 80. (CVE-2020-6829)

- When converting coordinates from projective to affine, the modular inversion was not performed in constant time, resulting in a possible timing-based side channel attack. This vulnerability affects Firefox < 80 and Firefox for Android < 80. (CVE-2020-12400)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://linux.oracle.com/errata/ELSA-2021-0538.html

Plugin Details

Severity: Medium

ID: 146580

File Name: oraclelinux_ELSA-2021-0538.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2/18/2021

Updated: 2/19/2021

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: Medium

VPR Score: 5.6

CVSS Score Source: CVE-2020-6829

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

CPE: cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:nss, p-cpe:/a:oracle:linux:nss-devel, p-cpe:/a:oracle:linux:nss-softokn, p-cpe:/a:oracle:linux:nss-softokn-devel, p-cpe:/a:oracle:linux:nss-softokn-freebl, p-cpe:/a:oracle:linux:nss-softokn-freebl-devel, p-cpe:/a:oracle:linux:nss-sysinit, p-cpe:/a:oracle:linux:nss-tools, p-cpe:/a:oracle:linux:nss-util, p-cpe:/a:oracle:linux:nss-util-devel

Required KB Items: Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list, Host/local_checks_enabled

Exploit Ease: No known exploits are available

Patch Publication Date: 2/17/2021

Vulnerability Publication Date: 8/25/2020

Reference Information

CVE: CVE-2020-6829, CVE-2020-12400, CVE-2020-12403