RHEL 7 : .NET Core on Red Hat Enterprise Linux (RHSA-2019:1236)

high Nessus Plugin ID 125322

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Synopsis

The remote Red Hat host is missing one or more security updates for .NET Core on Red Hat Enterprise Linux.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:1236 advisory.

.NET Core 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 Core that address security vulnerabilities are now available. The updated versions are .NET Core 1.0.16, 1.1.13, 2.1.11, and 2.2.5.

Security Fix(es):

* dotNET: timeouts for regular expressions are not enforced (CVE-2019-0820)

* dotNET: infinite loop in URI.TryCreate leading to ASP.Net Core Denial of Service (CVE-2019-0980)

* dotNET: crash in IPAddress.TryCreate leading to ASP.Net Core Denial of Service (CVE-2019-0981)

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.

Bug Fix(es):

* Re-enable bash completion in rh-dotnet22-dotnet (BZ#1654863)

* Error rebuilding rh-dotnet22-curl in CentOS (BZ#1678932)

* Broken apphost caused by unset DOTNET_ROOT (BZ#1703479)

* Make bash completion compatible with rh-dotnet22 packages (BZ#1705259)

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 RHEL .NET Core on Red Hat Enterprise Linux package based on the guidance in RHSA-2019:1236.

Plugin Details

Severity: High

ID: 125322

File Name: redhat-RHSA-2019-1236.nasl

Version: 1.9

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 5/22/2019

Updated: 11/6/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2019-0981

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:rh-dotnet22, p-cpe:/a:redhat:enterprise_linux:rh-dotnet22-libcurl, p-cpe:/a:redhat:enterprise_linux:rh-dotnet22-runtime, p-cpe:/a:redhat:enterprise_linux:rh-dotnet21-dotnet-runtime-2.1, p-cpe:/a:redhat:enterprise_linux:rh-dotnetcore11-dotnetcore, p-cpe:/a:redhat:enterprise_linux:rh-dotnet22-curl, p-cpe:/a:redhat:enterprise_linux:rh-dotnet21-dotnet, p-cpe:/a:redhat:enterprise_linux:rh-dotnet22-libcurl-devel, p-cpe:/a:redhat:enterprise_linux:rh-dotnet21-dotnet-sdk-2.1, p-cpe:/a:redhat:enterprise_linux:rh-dotnet21-dotnet-sdk-2.1.5xx, p-cpe:/a:redhat:enterprise_linux:rh-dotnetcore10-dotnetcore, p-cpe:/a:redhat:enterprise_linux:rh-dotnet21-dotnet-host, p-cpe:/a:redhat:enterprise_linux:rh-dotnet22-dotnet-host, p-cpe:/a:redhat:enterprise_linux:rh-dotnet22-dotnet-runtime-2.2, p-cpe:/a:redhat:enterprise_linux:rh-dotnet21, p-cpe:/a:redhat:enterprise_linux:rh-dotnet22-dotnet-sdk-2.2, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:rh-dotnet22-dotnet, p-cpe:/a:redhat:enterprise_linux:rh-dotnet22-dotnet-host-fxr-2.2, p-cpe:/a:redhat:enterprise_linux:rh-dotnet22-dotnet-sdk-2.2.1xx, p-cpe:/a:redhat:enterprise_linux:rh-dotnet21-runtime

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: 5/15/2019

Vulnerability Publication Date: 5/16/2019

Reference Information

CVE: CVE-2019-0820, CVE-2019-0980, CVE-2019-0981

CWE: 400

RHSA: 2019:1236

Detections

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