CVE-2023-24936

Ubuntu Security Notice 6161-2 - USN-6161-1 fixed vulnerabilities in .NET. The update introduced a regression with regards to how the runtime imported X.509 certificates. This update fixes the problem. It was discovered that .NET did not properly enforce certain restrictions when deserializing a DataSet or DataTable from XML. An attacker could possibly use this issue to elevate their privileges.

# Microsoft Security Advisory CVE-2023-24936: .NET Elevation of Privilege Vulnerability ## <a name="executive-summary"></a>Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 7.0 and .NET 6.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. A vulnerability exists in .NET when deserializing a DataSet or DataTable from XML which may result in elevation of privileges. ## Announcement Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/259 ### <a name="mitigation-factors"></a>Mitigation factors The default configuration of DataSet and DataTable is not susceptible to this vulnerability. This vulnerability only exists if the app developer or machine admin extends the DataSet and DataTable default allow-list [as specified here](https://learn.microsoft.com/en-us/dotnet/framework/data/adonet/dataset-datatable-da...

An update for .NET 6.0 is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. 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.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. Related CVEs: * CVE-2023-24936: No description is available for this CVE. * CVE-2023-29331: No description is available for this CVE. * CVE-2023-29337: No description is available for this CVE. * CVE-2023-33128: .NET and Visual Studio Remote Code Execution Vulnerability

An update for .NET 6.0 is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. 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.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. Related CVEs: * CVE-2023-24936: No description is available for this CVE. * CVE-2023-29331: No description is available for this CVE. * CVE-2023-29337: No description is available for this CVE. * CVE-2023-33128: .NET and Visual Studio Remote Code Execution Vulnerability

Ubuntu Security Notice 6161-1 - It was discovered that .NET did not properly enforce certain restrictions when deserializing a DataSet or DataTable from XML. An attacker could possibly use this issue to elevate their privileges. Kevin Jones discovered that .NET did not properly handle the AIA fetching process for X.509 client certificates. An attacker could possibly use this issue to cause a denial of service.