Rocky Linux 8 : gnutls and nettle (RLSA-2021:4451)

critical Nessus Plugin ID 164488

Synopsis

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

Description

The remote Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2021:4451 advisory.

- A flaw was found in the way nettle's RSA decryption functions handled specially crafted ciphertext. An attacker could use this flaw to provide a manipulated ciphertext leading to application crash and denial of service. (CVE-2021-3580)

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.

Plugin Details

Severity: Critical

ID: 164488

File Name: rocky_linux_RLSA-2021-4451.nasl

Version: 1.3

Type: local

Family: Rocky Linux Local Security Checks

Published: 8/29/2022

Updated: 11/6/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2021-20232

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:rocky:linux:gnutls, p-cpe:/a:rocky:linux:gnutls-c%2b%2b, p-cpe:/a:rocky:linux:gnutls-c%2b%2b-debuginfo, p-cpe:/a:rocky:linux:gnutls-dane, p-cpe:/a:rocky:linux:gnutls-dane-debuginfo, p-cpe:/a:rocky:linux:gnutls-debuginfo, p-cpe:/a:rocky:linux:gnutls-debugsource, p-cpe:/a:rocky:linux:gnutls-devel, p-cpe:/a:rocky:linux:gnutls-utils, p-cpe:/a:rocky:linux:gnutls-utils-debuginfo, p-cpe:/a:rocky:linux:nettle, p-cpe:/a:rocky:linux:nettle-debuginfo, p-cpe:/a:rocky:linux:nettle-debugsource, p-cpe:/a:rocky:linux:nettle-devel, cpe:/o:rocky:linux:8

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/29/2022

Vulnerability Publication Date: 8/5/2021

Reference Information

CVE: CVE-2021-20231, CVE-2021-20232, CVE-2021-3580

Detections

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