RHEL 9 : dotnet6.0 (RHSA-2023:5708)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:5708 advisory. .NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation. N...

RHEL 9 : nginx (RHSA-2023:5714)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:5714 advisory. nginx is a web and proxy server supporting HTTP and other protocols, with a focus on high concurrency, performance, and low memory usage. Security...

ALSA-2023:5721 Important: go-toolset:rhel8 security update

Go Toolset provides the Go programming language tools and libraries. Go is alternatively known as golang. Security Fixes: golang: net/http, x/net/http2: rapid stream resets can cause excessive work CVE-2023-44487 CVE-2023-39325 HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS...

RHEL 9 : .NET 7.0 (RHSA-2023:5749)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:5749 advisory. .NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation. N...

Vulnerabilities fixed Node.js

Several vulnerabilities have been fixed in Node.js. A malicious party could potentially exploit the vulnerabilities remotely to cause a denial-of-service DoS, bypass of authentication and/or gaining access to sensitive data. The vulnerability with attribute CVE-2023-44487 is a Denial-of-Service D...

RHEL 8 : nginx:1.20 (RHSA-2023:5712)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:5712 advisory. nginx is a web and proxy server supporting HTTP and other protocols, with a focus on high concurrency, performance, and low memory usage. Security...

[SECURITY] Fedora 38 Update: python-django-4.1.12-1.fc38

Django is a high-level Python Web framework that encourages rapid development and a clean, pragmatic design. It focuses on automating as much as possible and adhering to the DRY Don't Repeat Yourself principle...

HTTP/2 Zero-Day Exploited for the Most Explosive DDoS Attacks

Threat Level Vulnerability Report For a detailed threat advisory, download the pdf file here Summary A zero-day vulnerability in HTTP/2 has been actively exploited in August, introducing a novel DDoS technique referred as "Rapid Reset". The attack, utilizing CVE-2023-44487, exploits a vulnerabili...

Denial Of Service (DoS)

Libraries that implement HTTP/2 are vulnerable to Denial Of Service DoS. The vulnerability could be exploited by attackers via sending a large number of HTTP/2 requests to a vulnerable server, then canceling them, causing the server to consume excessive resources and become unavailable to...

HTTP2 Zero-Day Exploited for the Most Explosive DDoS Attacks

Threat Level Vulnerability Report For a detailed threat advisory, download the pdf file here Summary A zero-day vulnerability in HTTP/2 has been actively exploited in August, introducing a novel DDoS technique referred as "Rapid Reset". The attack, utilizing CVE-2023-44487, exploits a vulnerabili...

Apache Tomcat 9.0.70 < 9.0.81 Multiple Vulnerabilities

The version of Apache Tomcat installed on the remote host is 8.5.85 to 8.5.93, 9.0.70 to 9.0.80, 10.1.0-M1 to 10.1.13 or 11.0.0-M1 to 11.0.0-M11. It is, therefore, affected by multiple vulnerabilities : - Tomcat did not correctly parse HTTP trailer headers. A specially crafted, invalid trailer...

Apache Tomcat 8.5.85 < 8.5.94 Multiple Vulnerabilities

The version of Apache Tomcat installed on the remote host is 8.5.85 to 8.5.93, 9.0.70 to 9.0.80, 10.1.0-M1 to 10.1.13 or 11.0.0-M1 to 11.0.0-M11. It is, therefore, affected by multiple vulnerabilities : - Tomcat did not correctly parse HTTP trailer headers. A specially crafted, invalid trailer...

What to know about the HTTP/2 Rapid Reset DDoS attacks

Cisco Talos is actively tracking the novel distributed denial-of-service DDoS attacks cloud services provider Cloudflare disclosed earlier this week. The techniques described in Cloudflares blog post resulted in a record-breaking DDoS attack and could facilitate much larger attacks in the future...

AZL-33330 CVE-2023-39325 affecting package packer for versions less than 1.8.7-2

A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a ne...

AZL-31655 CVE-2023-39325 affecting package vitess for versions less than 16.0.2-5

A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a ne...

AZL-43741 CVE-2023-39325 affecting package nmi 1.8.17-6

A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a ne...

AZL-79060 CVE-2023-39325 affecting package golang 1.26.5-2

A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a ne...

CVE-2023-39325 HTTP/2 rapid reset can cause excessive work in net/http

A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a ne...

GHSA-4374-P667-P6C8 HTTP/2 rapid reset can cause excessive work in net/http

A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a ne...

HTTP/2 rapid reset can cause excessive work in net/http

A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a ne...