RHEL 7 : rpm (RHSA-2021:4771)

high Nessus Plugin ID 155689

Synopsis

The remote Red Hat host is missing a security update.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:4771 advisory.

- rpm: Signature checks bypass via corrupted rpm package (CVE-2021-20271)

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://access.redhat.com/security/cve/CVE-2021-20271

https://access.redhat.com/errata/RHSA-2021:4771

https://bugzilla.redhat.com/1934125

Plugin Details

Severity: High

ID: 155689

File Name: redhat-RHSA-2021-4771.nasl

Version: 1.5

Type: local

Agent: unix

Published: 11/23/2021

Updated: 1/23/2023

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 5.1

Temporal Score: 3.8

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

CVSS Score Source: CVE-2021-20271

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.1

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

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

Vulnerability Information

CPE: cpe:/o:redhat:rhel_aus:7.6, cpe:/o:redhat:rhel_e4s:7.6, cpe:/o:redhat:rhel_tus:7.6, p-cpe:/a:redhat:enterprise_linux:rpm, p-cpe:/a:redhat:enterprise_linux:rpm-apidocs, p-cpe:/a:redhat:enterprise_linux:rpm-build, p-cpe:/a:redhat:enterprise_linux:rpm-build-libs, p-cpe:/a:redhat:enterprise_linux:rpm-cron, p-cpe:/a:redhat:enterprise_linux:rpm-devel, p-cpe:/a:redhat:enterprise_linux:rpm-libs, p-cpe:/a:redhat:enterprise_linux:rpm-plugin-systemd-inhibit, p-cpe:/a:redhat:enterprise_linux:rpm-python, p-cpe:/a:redhat:enterprise_linux:rpm-sign

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: 11/23/2021

Vulnerability Publication Date: 3/22/2021

Reference Information

CVE: CVE-2021-20271

CWE: 345

RHSA: 2021:4771