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: 0%CPEs: 14EXPL: 0CVE-2020-1045 – Microsoft ASP.NET Core Security Feature Bypass Vulnerability
https://notcve.org/view.php?id=CVE-2020-1045
<p>A security feature bypass vulnerability exists in the way Microsoft ASP.NET Core parses encoded cookie names.</p> <p>The ASP.NET Core cookie parser decodes entire cookie strings which could allow a malicious attacker to set a second cookie with the name being percent encoded.</p> <p>The security update addresses the vulnerability by fixing the way the ASP.NET Core cookie parser handles encoded names.</p> Se presenta una vulnerabilidad de omisión de la característica de seguridad en la manera en que Microsoft ASP.NET Core analiza los nombres de cookies codificados. El analizador de cookies de ASP.NET Core decodifica cadenas de cookies completas que podrían permitir a un atacante malicioso establecer una segunda cookie con el nombre codificado en porcentaje. • https://access.redhat.com/errata/RHSA-2020:3699 https://github.com/dotnet/core/blob/main/release-notes/3.1/3.1.8/3.1.8.md#changes-in-318 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5LN2FUVBSVPGK7AU3NMLO3YR6CGONQPB https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ASICXQXS4M7MTAF6SGQMCLCA63DLCUT3 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1045 https://security.snyk.io/vuln/SNYK-RHEL8 • CWE-807: Reliance on Untrusted Inputs in a Security Decision •
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 •