RHEL 7 : dotNET (RHSA-2019:1236)

high Nessus Plugin ID 125322
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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: 1.5

Type: local

Agent: unix

Published: 5/22/2019

Updated: 1/15/2020

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: E:U/RL:OF/RC:C

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: 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