There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - Microsoft .NET Framework 1.1, 2.0, 3.0, 3.5, 3.5.1, 4, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 5.7 and
    .NET Core 1.0. 1.1 and 2.0 allow a denial of service vulnerability due to the way XML documents are
    processed, aka ".NET and .NET Core Denial Of Service Vulnerability". This CVE is unique from
    CVE-2018-0765. (CVE-2018-0764)

The .NET Framework installation on the remote host is missing a security update. It is, therefore, affected by the following vulnerabilities:

  - A Denial of Service vulnerability exists when .NET, and     .NET core, improperly process XML documents. An attacker     who successfully exploited this vulnerability could     cause a denial of service against a .NET application. A     remote unauthenticated attacker could exploit this     vulnerability by issuing specially crafted requests to a     .NET(or .NET core) application. (CVE-2018-0764)

  - A security feature bypass vulnerability exists when     Microsoft .NET Framework (and .NET Core) components do     not completely validate certificates. An attacker could     present a certificate that is marked invalid for a     specific use, but the component uses it for that     purpose. This action disregards the Enhanced Key Usage     taggings. (CVE-2018-0786)

The Microsoft .NET Core runtime installed on the remote macOS or Mac OS X host is missing a security update. It is, therefore, affected by multiple vulnerabilities :

  - A security feature bypass in X509 Certificate Validation     allows an attacker to present a certificate that is     marked as invalid for a specific use, but a component     uses it for that purpose. (CVE-2018-0786)

  - A denial of service vulnerability exists due to improper      processing of XML documents. An attacker who      successfully exploited this vulnerability could cause      a denial of service against a .NET application. A      remote unauthenticated attacker could exploit this      vulnerability by issuing specially crafted requests      to a .NET Core application. (CVE-2018-0764)

The remote Windows host has an installation of .NET Core with a version less than 2.0.5. Therefore, the host is affected by multiple vulnerabilities :

  - A security feature bypass in X509 Certificate Validation     allows an attacker to present a certificate that is     marked as invalid for a specific use, but a component     uses it for that purpose. (CVE-2018-0786)

  - A denial of service vulnerability exists due to improper      processing of XML documents. An attacker who      successfully exploited this vulnerability could cause      a denial of service against a .NET application. A      remote unauthenticated attacker could exploit this      vulnerability by issuing specially crafted requests      to a .NET Core application. (CVE-2018-0764)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2018:0379 advisory.

    .NET Core is a managed software framework. It implements a subset of the .NET framework APIs and includes     a CLR implementation.

    New versions of .NET Core that address several security vulnerabilities are now available. The updated     versions are .NET Core 1.0.9, 1.1.6, and 2.0.5.

    Security Fix(es):

    * .NET Core: Improper processing of XML documents can cause a denial of service (CVE-2018-0764)

    For more details about the security issue(s), including the impact, a CVSS score, 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.

ID	Name	Product	Family	Published	Updated	Severity
421894	SCA: security update for System.Security.Cryptography.Xml (GHSA-rr3c-f55v-qhv5)	Tenable Self-Hosted Container Security	SCA Checks	3/28/2025	7/2/2026	high
421894	SCA: security update for System.Security.Cryptography.Xml (GHSA-rr3c-f55v-qhv5)	Tenable Cloud Security	SCA Checks	3/28/2025	7/2/2026	high
105731	Security and Quality Rollup for .NET Framework (January 2018)	Nessus	Windows : Microsoft Bulletins	1/10/2018	11/8/2019	high
105729	Security Update for .NET Core (January 2018) (macOS)	Nessus	MacOS X Local Security Checks	1/10/2018	11/8/2019	high
105730	Security Update for .NET Core (January 2018)	Nessus	Windows	1/10/2018	5/19/2026	high
107114	RHEL 7 : .NET Core on Red Hat Enterprise Linux (RHSA-2018:0379)	Nessus	Red Hat Local Security Checks	3/2/2018	10/27/2025	high

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