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AlmaLinux 8 : nss and nspr (ALSA-2021:3572)

high Nessus Plugin ID 157558

Synopsis

The remote AlmaLinux host is missing a security update.

Description

The remote AlmaLinux 8 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2021:3572 advisory.

 - A flaw was found in the way NSS handled CCS (ChangeCipherSpec) messages in TLS 1.3. This flaw allows a remote attacker to send multiple CCS messages, causing a denial of service for servers compiled with the NSS library. The highest threat from this vulnerability is to system availability. This flaw affects NSS versions before 3.58. (CVE-2020-25648)

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://errata.almalinux.org/8/ALSA-2021-3572.html

Plugin Details

Severity: High

ID: 157558

File Name: alma_linux_ALSA-2021-3572.nasl

Version: 1.4

Type: local

Published: 2/9/2022

Updated: 11/13/2023

Supported Sensors: Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.1

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

CVSS Score Source: CVE-2020-25648

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 7

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

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

Vulnerability Information

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

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/21/2021

Vulnerability Publication Date: 10/20/2020

Reference Information

CVE: CVE-2020-25648