Detections
Analytics
RHEL 7 : .NET Core 2.1 on Red Hat Enterprise Linux (RHSA-2021:0470)
medium Nessus Plugin ID 146379
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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-2021:0470 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 a security vulnerability are now available. The updated versions are .NET Core SDK 2.1.521 and .NET Core Runtime 2.1.25.
Security Fix(es):
* dotnet: certificate chain building recursion Denial of Service (CVE-2021-1721)
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 this issue but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
http://www.nessus.org/u?02f8dff0
https://access.redhat.com/security/updates/classification/#important
Plugin Details
Severity: Medium
ID: 146379
File Name: redhat-RHSA-2021-0470.nasl
Version: 1.13
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 2/10/2021
Updated: 11/7/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: Medium
Base Score: 4.3
Temporal Score: 3.2
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS Score Source: CVE-2021-1721
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 5.7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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-runtime-2.1, cpe:/o:redhat:enterprise_linux:7, 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-dotnet-host, p-cpe:/a:redhat:enterprise_linux:rh-dotnet21-dotnet, 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: 2/10/2021
Vulnerability Publication Date: 2/9/2021
Reference Information
CVE: CVE-2021-1721