RHEL 7 : dotNET (RHSA-2019:1236)

high Nessus Plugin ID 125322

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

Updates for rh-dotnetcore10-dotnetcore, rh-dotnetcore11-dotnetcore, rh-dotnet21-dotnet, rh-dotnet22-dotnet and rh-dotnet22-curl are now available for .NET Core on Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

.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)

Solution

Update the affected packages.

See Also

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/

https://access.redhat.com/errata/RHSA-2019:1236

https://access.redhat.com/security/cve/cve-2019-0820

https://access.redhat.com/security/cve/cve-2019-0980

https://access.redhat.com/security/cve/cve-2019-0981

Plugin Details

Severity: High

ID: 125322

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

Version: 1.6

Type: local

Agent: unix

Published: 5/22/2019

Updated: 12/5/2022

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

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

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

RHSA: 2019:1236