RHEL 8 : .NET Core 3.1 (RHSA-2021:3142)

medium Nessus Plugin ID 152595

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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-2021:3142 advisory.

.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.

New versions of .NET that address security vulnerabilities are now available. The updated versions are .NET SDK 3.1.118 and .NET Runtime 3.1.18.

Security Fix(es):

* dotnet: ASP.NET Core WebSocket frame processing DoS (CVE-2021-26423)

* dotnet: Dump file created world-readable (CVE-2021-34485)

* dotnet: ASP.NET Core JWT token logging (CVE-2021-34532)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

Solution

Update the affected packages.

Plugin Details

Severity: Medium

ID: 152595

File Name: redhat-RHSA-2021-3142.nasl

Version: 1.11

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 8/16/2021

Updated: 11/7/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2021-34532

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:dotnet-apphost-pack-3.1, p-cpe:/a:redhat:enterprise_linux:dotnet3.1, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:dotnet-runtime-3.1, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-3.1, cpe:/o:redhat:rhel_eus:8.4, p-cpe:/a:redhat:enterprise_linux:dotnet-hostfxr-3.1, p-cpe:/a:redhat:enterprise_linux:aspnetcore-targeting-pack-3.1, p-cpe:/a:redhat:enterprise_linux:dotnet-targeting-pack-3.1, p-cpe:/a:redhat:enterprise_linux:aspnetcore-runtime-3.1, p-cpe:/a:redhat:enterprise_linux:dotnet-templates-3.1

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: 8/11/2021

Vulnerability Publication Date: 8/10/2021

Reference Information

CVE: CVE-2021-26423, CVE-2021-34485, CVE-2021-34532

CWE: 532, 732, 835

IAVA: 2021-A-0378-S, 2021-A-0379, 2021-A-0380-S

RHSA: 2021:3142

Detections

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