netty: possible request smuggling in HTTP/2 due missing validation

In Netty io.netty:netty-codec-http2 before version 4.1.60.Final there is a vulnerability that enables request smuggling. If a Content-Length header is present in the original HTTP/2 request, the field is not validated by Http2MultiplexHandler as it is propagated up. This is fine as long as the...

DEBIAN-CVE-2021-33193

A crafted method sent through HTTP/2 will bypass validation and be forwarded by modproxy, which can lead to request splitting or cache poisoning. This issue affects Apache HTTP Server 2.4.17 to 2.4.48...

UBUNTU-CVE-2021-33193

A crafted method sent through HTTP/2 will bypass validation and be forwarded by modproxy, which can lead to request splitting or cache poisoning. This issue affects Apache HTTP Server 2.4.17 to 2.4.48...

varnish: HTTP/2 request smuggling attack via a large Content-Length header for a POST request

A flaw was found in Varnish. The Varnish Cache, with HTTP/2 enabled, allows request smuggling and VCL authorization bypass via a large Content-Length header for a POST request. As a result, this flaw allows the information on the Varnish cache to be poisoned. The highest threat from this...

UBUNTU-CVE-2021-36740

Varnish Cache, with HTTP/2 enabled, allows request smuggling and VCL authorization bypass via a large Content-Length header for a POST request. This affects Varnish Enterprise 6.0.x before 6.0.8r3, and Varnish Cache 5.x and 6.x before 6.5.2, 6.6.x before 6.6.1, and 6.0 LTS before 6.0.8...

PT-2021-21330 · Varnish +5 · Varnish Cache +6

Name of the Vulnerable Software and Affected Versions: Varnish Enterprise versions 6.0.x through 6.0.8r2 Varnish Cache versions 5.x through 6.5.1 Varnish Cache versions 6.6.x through 6.6.0 Varnish Cache 6.0 LTS versions prior to 6.0.8 Description: The issue allows request smuggling and VCL...

netty: possible request smuggling in HTTP/2 due missing validation

In Netty io.netty:netty-codec-http2 before version 4.1.60.Final there is a vulnerability that enables request smuggling. If a Content-Length header is present in the original HTTP/2 request, the field is not validated by Http2MultiplexHandler as it is propagated up. This is fine as long as the...

ALPINE-CVE-2021-31618

Apache HTTP Server protocol handler for the HTTP/2 protocol checks received request headers against the size limitations as configured for the server and used for the HTTP/1 protocol as well. On violation of these restrictions and HTTP response is sent to the client with a status code indicating...

Apache EasyApache 代码问题漏洞

EasyApache is a powerful and easy-to-use tool from the Apache USA Foundation, built into WHM/cPanel, that can be used to update and configure the Apache web server. A code issue vulnerability exists in Apache EasyApache that stems from pointing NULL pointers to MODHTTP2, MODSESSION, and...

envoyproxy/envoy: crash with empty HTTP/2 metadata map

A flaw was found in envoyproxy. An attacker, able to craft an HTTP2 request that specifies an empty metadata map, can crash envoy resulting in a denial of service due to the null reference. The highest threat from this vulnerability is to system availability...

GHSA-26VR-8J45-3R4W Jetty vulnerable to incorrect handling of invalid large TLS frame, exhausting CPU resources

Impact When using SSL/TLS with Jetty, either with HTTP/1.1, HTTP/2, or WebSocket, the server may receive an invalid large greater than 17408 TLS frame that is incorrectly handled, causing CPU resources to eventually reach 100% usage. Workarounds The problem can be worked around by compiling the...

The vulnerability of the HTTP/2 server implementation in Apache Tomcat allows attackers to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability of the HTTP/2 server implementation in Apache Tomcat is related to the lack of protection for service data. Exploiting this vulnerability allows a remote attacker to compromise the confidentiality, integrity, and accessibility of the protected information...

Undertow: Incomplete fix for CVE-2017-2666 due to permitting invalid characters in HTTP requests

A flaw was discovered in Undertow where HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from...

F5 BIG-IP 安全漏洞

F5 BIG-IP is an application delivery platform from F5 USA that integrates network traffic management, application security management, load balancing and other functions. A security vulnerability exists in F5 BIG-IP, which can be exploited by an attacker to trigger a denial of service via an HTTP...

The vulnerability affects the implementation of HTTP/2 technology in browsers like Firefox, Firefox ESR, and the email client Thunderbird. This allows attackers to induce a service failure.

The vulnerability in the implementation of HTTP/2 technology in Firefox browsers, Firefox ESR, and the Thunderbird email client is related to reading data beyond the buffer in memory. Exploiting this vulnerability can allow a malicious actor to cause service failures remotely...

tomcat: specially crafted sequence of HTTP/2 requests can lead to DoS

A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become...

httpd: mod_http2: read-after-free on a string compare

A vulnerability was found in Apache HTTP Server 2.4.17 to 2.4.38. Using fuzzed network input, the http/2 request handling could be made to access freed memory in string comparison when determining the method of a request and thus process the request incorrectly...

tomcat: OutOfMemoryException caused by HTTP/2 connection leak could lead to DoS

A flaw was found in Apache Tomcat, where an h2c direct connection did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests are made, an OutOfMemoryException could occur, leading to a denial of service. The highest threat from this vulnerability i...

HTTP/2: flood using empty frames results in excessive resource consumption

A flaw was found in HTTP/2. Using frames with an empty payload, a flood could occur that results in excessive CPU usage and starvation of other clients. The highest threat from this vulnerability is to system availability...

envoy: Resource exhaustion when proxying HTTP/2 requests or responses with small data frames

A flaw was found in Envoy in versions through 1.14.1. An excessive amount of memory may be consumed when proxying HTTP/2 requests and responses that contain many small e.g. 1 byte data frames. The highest threat from this vulnerability is to system availability...