CVSS: 6.5EPSS: 0%CPEs: 7EXPL: 0CVE-2021-1721 – .NET Core and Visual Studio Denial of Service Vulnerability
https://notcve.org/view.php?id=CVE-2021-1721
.NET Core and Visual Studio Denial of Service Vulnerability Una Vulnerabilidad de Denegación de Servicio de .NET Core y Visual Studio A flaw was found in dotnet. A recursion error when building X.509 certificate chains can lead to a stack overflow which could crash the system. The highest threat from this vulnerability is to system availability. • https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1721 https://access.redhat.com/security/cve/CVE-2021-1721 https://bugzilla.redhat.com/show_bug.cgi?id=1926918 • CWE-674: Uncontrolled Recursion •
CVSS: 7.5EPSS: 0%CPEs: 5EXPL: 0CVE-2021-1723 – ASP.NET Core and Visual Studio Denial of Service Vulnerability
https://notcve.org/view.php?id=CVE-2021-1723
ASP.NET Core and Visual Studio Denial of Service Vulnerability Una Vulnerabilidad de Denegación de Servicio de ASP.NET Core y Visual Studio A flaw was found in dotnet. Running callbacks outside of locks results in Krestel deadlock using HTTP2. The highest threat from this vulnerability is to system availability. • https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1723 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1723 https://access.redhat.com/security/cve/CVE-2021-1723 https://bugzilla.redhat.com/show_bug.cgi?id=1914258 • CWE-833: Deadlock •
CVSS: 6.5EPSS: 1%CPEs: 21EXPL: 0CVE-2020-8927 – Buffer overflow in Brotli library
https://notcve.org/view.php?id=CVE-2020-8927
A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your Brotli library to 1.0.8 or later. If one cannot update, we recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits. Se presenta un desbordamiento del búfer en la biblioteca Brotli versiones anteriores a 1.0.8, donde un atacante que controla la longitud de entrada de una petición de descompresión "one-shot" en un script puede desencadenar un bloqueo, que ocurre cuando se copian fragmentos de datos de más de 2 GiB . Se recomienda actualizar su biblioteca de Brotli a la versión 1.0.8 o posterior. • http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00108.html https://github.com/google/brotli/releases/tag/v1.0.9 https://lists.debian.org/debian-lts-announce/2020/12/msg00003.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/356JOYTWW4BWSZ42SEFLV7NYHL3S3AEH https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4TOGTZ2ZWDH662ZNFFSZVL3M5AJXV6JF https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-130: Improper Handling of Length Parameter Inconsistency •
CVSS: 7.5EPSS: 1%CPEs: 7EXPL: 0CVE-2020-1597 – ASP.NET Core Denial of Service Vulnerability
https://notcve.org/view.php?id=CVE-2020-1597
A denial of service vulnerability exists when ASP.NET Core improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against an ASP.NET Core web application. The vulnerability can be exploited remotely, without authentication. A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the ASP.NET Core application. The update addresses the vulnerability by correcting how the ASP.NET Core web application handles web requests. Se presenta una vulnerabilidad de denegación de servicio cuando ASP.NET Core maneja inapropiadamente las peticiones web, también se conoce como "ASP.NET Core Denial of Service Vulnerability". A flaw was found in ASP.NET Core. • https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WH5FQ5VT3JGHXFXOETHCTBWJUIAPGHHT https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZW4CBI26KSO3PRL3HLVVISXPPOYUHSXO https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1597 https://access.redhat.com/security/cve/CVE-2020-1597 https://bugzilla.redhat.com/show_bug.cgi?id=1861110 • CWE-400: Uncontrolled Resource Consumption •
CVSS: 8.8EPSS: 89%CPEs: 88EXPL: 6CVE-2020-1147 – Microsoft .NET Framework, SharePoint, and Visual Studio Remote Code Execution Vulnerability
https://notcve.org/view.php?id=CVE-2020-1147
A remote code execution vulnerability exists in .NET Framework, Microsoft SharePoint, and Visual Studio when the software fails to check the source markup of XML file input, aka '.NET Framework, SharePoint Server, and Visual Studio Remote Code Execution Vulnerability'. Se presenta una vulnerabilidad de ejecución de código remota en .NET Framework, Microsoft SharePoint y Visual Studio cuando el software presenta un fallo al comprobar el marcado de origen de una entrada de archivo XML, también se conoce como ".NET Framework, SharePoint Server, and Visual Studio Remote Code Execution Vulnerability" 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. Microsoft .NET Framework, Microsoft SharePoint, and Visual Studio contain a remote code execution vulnerability when the software fails to check the source markup of XML file input. Successful exploitation allows an attacker to execute code in the context of the process responsible for deserialization of the XML content. • https://www.exploit-db.com/exploits/48747 https://www.exploit-db.com/exploits/50151 http://packetstormsecurity.com/files/158694/SharePoint-DataSet-DataTable-Deserialization.html http://packetstormsecurity.com/files/158876/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html http://packetstormsecurity.com/files/163644/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1147 https://www.exploitalert.com/view-details.html?id=35992 h • CWE-502: Deserialization of Untrusted Data •