The Microsoft ASP.NET Core installation on the remote host is version 3.1.x < 3.1.11 or 5.x prior to 5.0.2. It is, therefore, affected by a denial of service (DoS) vulnerability in the way Kestrel parses HTTP/2 requests. An unauthenticated, remote attacker can exploit this issue, by sending a specially crafted requests to the ASP.NET Core application, to cause a DoS condition.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:0094 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 a security vulnerability are now available. The updated versions are     .NET SDK 5.0.102 and .NET Runtime 5.0.2.

    Security Fix(es):

    * dotnet: ASP.NET Core Callbacks outside of locks cause Krestel deadlock when using HTTP2 (CVE-2021-1723)

    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.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:0114 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 3.1.111 and .NET Core Runtime 3.1.11.

    Security Fix(es):

    * dotnet: ASP.NET Core Callbacks outside of locks cause Krestel deadlock when using HTTP2 (CVE-2021-1723)

    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.

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2021-0094 advisory.

    [5.0.102-2.0.1]
    - Add support for new Oracle release

    [5.0.102-2]
    - Rebuild with updated tests
    - Resolves: RHBZ#1912684

    [5.0.102-1]
    - Update to .NET SDK 5.0.102 and Runtime 5.0.2
    - Resolves: RHBZ#1912684

Tenable has extracted the preceding description block directly from the Oracle 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.

The Microsoft .NET Core installation on the remote host is version 3.1.x < 3.1.11 or 5.x prior to 5.0.2. It is, therefore, affected by a denial of service (DoS) vulnerability in the way Kestrel parses HTTP/2 requests. An unauthenticated, remote attacker can exploit this issue, by sending a specially crafted requests to the .NET Core application, to cause a DoS condition.

The remote CentOS Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CESA-2021:0094 advisory.

  - dotnet: ASP.NET Core Callbacks outside of locks cause Krestel deadlock when using HTTP2 (CVE-2021-1723)

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

The remote CentOS Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CESA-2021:0095 advisory.

  - dotnet: ASP.NET Core Callbacks outside of locks cause Krestel deadlock when using HTTP2 (CVE-2021-1723)

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

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:0096 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 a security vulnerability are now available. The updated versions are     .NET SDK 5.0.102 and .NET Runtime 5.0.2.

    Security Fix(es):

    * dotnet: ASP.NET Core Callbacks outside of locks cause Krestel deadlock when using HTTP2 (CVE-2021-1723)

    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.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:0095 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 3.1.111 and .NET Core Runtime 3.1.11.

    Security Fix(es):

    * dotnet: ASP.NET Core Callbacks outside of locks cause Krestel deadlock when using HTTP2 (CVE-2021-1723)

    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.

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2021-0095 advisory.

    [3.1.111-1.0.1]
    - Update patch to support 8.3 (alexander.burmashev@oracle.com)
    - support OL release scheme (alexander.burmashev@oracle.com)

    [3.1.111-1]
    - Update to .NET Core SDK 3.1.111 and Runtime 3.1.11
    - Resolves: RHBZ#1907633

Tenable has extracted the preceding description block directly from the Oracle 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.

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2021-1546:02 advisory.

    * dotnet: certificate chain building recursion Denial of Service     (CVE-2021-1721)
      * dotnet: ASP.NET Core Callbacks outside of locks cause Krestel deadlock when     using HTTP2 (CVE-2021-1723)

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

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

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
145040	Security Update for Microsoft ASP.NET Core (January 2021)	Nessus	Windows	2021/1/18	2026/5/19	high
144931	RHEL 8 : dotnet5.0 (RHSA-2021:0094)	Nessus	Red Hat Local Security Checks	2021/1/13	2025/2/14	high
144939	RHEL 7 : .NET Core 3.1 on Red Hat Enterprise Linux (RHSA-2021:0114)	Nessus	Red Hat Local Security Checks	2021/1/13	2025/2/14	high
145036	Oracle Linux 8 : dotnet5.0 (ELSA-2021-0094)	Nessus	Oracle Linux Local Security Checks	2021/1/15	2024/10/22	high
145041	Security Update for .NET Core (January 2021)	Nessus	Windows	2021/1/18	2026/5/19	high
145931	CentOS 8 : dotnet5.0 (CESA-2021:0094)	Nessus	CentOS Local Security Checks	2021/2/1	2022/12/5	high
146033	CentOS 8 : dotnet3.1 (CESA-2021:0095)	Nessus	CentOS Local Security Checks	2021/2/1	2022/12/5	high
144934	RHEL 7 : .NET 5.0 on Red Hat Enterprise Linux (RHSA-2021:0096)	Nessus	Red Hat Local Security Checks	2021/1/13	2025/2/14	high
144935	RHEL 8 : dotnet3.1 (RHSA-2021:0095)	Nessus	Red Hat Local Security Checks	2021/1/13	2025/2/14	high
145006	Oracle Linux 8 : dotnet3.1 (ELSA-2021-0095)	Nessus	Oracle Linux Local Security Checks	2021/1/14	2024/10/23	high
291691	MiracleLinux 8 : dotnet5.0-5.0.103-1.0.1.el8 (AXSA:2021-1546:02)	Nessus	Miracle Linux Local Security Checks	2026/1/19	2026/1/20	high

检测

插件搜索

high

high

high

high

high

high

high

high

high

high

high