RHEL 8 : nss (RHSA-2021:0538)

medium Nessus Plugin ID 146550
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VPR Score: 5.6

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:0538 advisory.

- nss: P-384 and P-521 implementation uses a side-channel vulnerable modular inversion function (CVE-2020-12400)

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

- nss: Side channel attack on ECDSA signature generation (CVE-2020-6829)

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://cwe.mitre.org/data/definitions/125.html

https://cwe.mitre.org/data/definitions/327.html

https://access.redhat.com/security/cve/CVE-2020-6829

https://access.redhat.com/security/cve/CVE-2020-12400

https://access.redhat.com/security/cve/CVE-2020-12403

https://access.redhat.com/errata/RHSA-2021:0538

https://bugzilla.redhat.com/1826187

https://bugzilla.redhat.com/1853983

https://bugzilla.redhat.com/1868931

Plugin Details

Severity: Medium

ID: 146550

File Name: redhat-RHSA-2021-0538.nasl

Version: 1.4

Type: local

Agent: unix

Published: 2/16/2021

Updated: 3/24/2021

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:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:nss, p-cpe:/a:redhat:enterprise_linux:nss-devel, p-cpe:/a:redhat:enterprise_linux:nss-softokn, p-cpe:/a:redhat:enterprise_linux:nss-softokn-devel, p-cpe:/a:redhat:enterprise_linux:nss-softokn-freebl, p-cpe:/a:redhat:enterprise_linux:nss-softokn-freebl-devel, p-cpe:/a:redhat:enterprise_linux:nss-sysinit, p-cpe:/a:redhat:enterprise_linux:nss-tools, p-cpe:/a:redhat:enterprise_linux:nss-util, p-cpe:/a:redhat:enterprise_linux:nss-util-devel

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/16/2021

Vulnerability Publication Date: 8/25/2020

Reference Information

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

RHSA: 2021:0538

CWE: 125, 327