rhsa-2020_2988
Vulnerability from csaf_redhat
Published
2020-07-16 19:21
Modified
2024-11-15 08:33
Summary
Red Hat Security Advisory: .NET Core security and bugfix update

Notes

Topic
An update for .NET Core is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Critical. 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.
Details
.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 version is .NET Core Runtime 2.1.20 and SDK 2.1.516. Security Fix(es): * .NET Core: XML source markup processing remote code execution (CVE-2020-1147) Default inclusions for applications built with .NET Core have been updated to reference the newest versions and their security fixes. 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.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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          "category": "description",
          "text": "It was discovered that .NET Core did not properly check the source markup of XML files. A remote, unauthenticated attacker could possibly exploit this flaw to execute arbitrary code by sending specially crafted requests to an application parsing certain kinds of XML files or an ASP.NET Core application.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "dotnet: XML source markup processing remote code execution",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "AppStream-8.1.0.Z.EUS:dotnet-0:2.1.516-1.el8_1.src",
            "AppStream-8.1.0.Z.EUS:dotnet-debuginfo-0:2.1.516-1.el8_1.x86_64",
            "AppStream-8.1.0.Z.EUS:dotnet-debugsource-0:2.1.516-1.el8_1.x86_64",
            "AppStream-8.1.0.Z.EUS:dotnet-host-fxr-2.1-0:2.1.20-1.el8_1.x86_64",
            "AppStream-8.1.0.Z.EUS:dotnet-host-fxr-2.1-debuginfo-0:2.1.20-1.el8_1.x86_64",
            "AppStream-8.1.0.Z.EUS:dotnet-runtime-2.1-0:2.1.20-1.el8_1.x86_64",
            "AppStream-8.1.0.Z.EUS:dotnet-runtime-2.1-debuginfo-0:2.1.20-1.el8_1.x86_64",
            "AppStream-8.1.0.Z.EUS:dotnet-sdk-2.1-0:2.1.516-1.el8_1.x86_64",
            "AppStream-8.1.0.Z.EUS:dotnet-sdk-2.1.5xx-0:2.1.516-1.el8_1.x86_64",
            "AppStream-8.1.0.Z.EUS:dotnet-sdk-2.1.5xx-debuginfo-0:2.1.516-1.el8_1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "exploit_status",
          "date": "2021-11-03T00:00:00+00:00",
          "details": "CISA: https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
        },
        {
          "category": "impact",
          "details": "Critical"
        }
      ],
      "title": "dotnet: XML source markup processing remote code execution"
    }
  ]
}


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