HTTP/2: 0-length headers lead to denial of service

A flaw was found in HTTP/2. An attacker, sending a stream of header with a 0-length header name and a 0-length header value, could cause some implementations to allocate memory for these headers and keep the allocations alive until the session dies. The can consume excess memory, potentially...

HTTP/2: 0-length headers lead to denial of service

A flaw was found in HTTP/2. An attacker, sending a stream of header with a 0-length header name and a 0-length header value, could cause some implementations to allocate memory for these headers and keep the allocations alive until the session dies. The can consume excess memory, potentially...

nodejs: Insufficient Slowloris fix causing DoS via server.headersTimeout bypass

It was found that the original fix for Slowloris, CVE-2018-12122, was insufficient. It is possible to bypass the server's headersTimeout by sending two specially crafted HTTP requests in the same connection. An attacker could use this flaw to bypass Slowloris protection, resulting in a denial of...

nodejs: Denial of Service with large HTTP headers

Node.js: All versions prior to Node.js 6.15.0, 8.14.0, 10.14.0 and 11.3.0: Denial of Service with large HTTP headers: By using a combination of many requests with maximum sized headers almost 80 KB per connection, and carefully timed completion of the headers, it is possible to cause the HTTP...

HTTP/2: 0-length headers lead to denial of service

A flaw was found in HTTP/2. An attacker, sending a stream of header with a 0-length header name and a 0-length header value, could cause some implementations to allocate memory for these headers and keep the allocations alive until the session dies. The can consume excess memory, potentially...

HTTP/2: flood using HEADERS frames results in unbounded memory growth

A flaw was found in HTTP/2. Using HEADER frames with invalid HTTP headers and queuing of response RSTSTREAM frames, an attacker could cause a flood resulting in unbounded memory growth. The highest threat from this vulnerability is to system availability...

Debian DLA-1941-1 : netty security update

Netty mishandled whitespace before the colon in HTTP headers such as a 'Transfer-Encoding : chunked' line, which lead to HTTP request smuggling. For Debian 8 'Jessie', this problem has been fixed in version 1:3.2.6.Final-2+deb8u1. We recommend that you upgrade your netty packages. NOTE: Tenable...

[SECURITY] [DLA 1941-1] netty security update

Package : netty Version : 1:3.2.6.Final-2+deb8u1 CVE ID : CVE-2019-16869 Netty mishandled whitespace before the colon in HTTP headers such as a “Transfer-Encoding : chunked” line, which lead to HTTP request smuggling. For Debian 8 "Jessie", this problem has been fixed in version...

HTTP/2: 0-length headers lead to denial of service

A flaw was found in HTTP/2. An attacker, sending a stream of header with a 0-length header name and a 0-length header value, could cause some implementations to allocate memory for these headers and keep the allocations alive until the session dies. The can consume excess memory, potentially...

nodejs: Insufficient Slowloris fix causing DoS via server.headersTimeout bypass

It was found that the original fix for Slowloris, CVE-2018-12122, was insufficient. It is possible to bypass the server's headersTimeout by sending two specially crafted HTTP requests in the same connection. An attacker could use this flaw to bypass Slowloris protection, resulting in a denial of...

HTTP/2: flood using HEADERS frames results in unbounded memory growth

A flaw was found in HTTP/2. Using HEADER frames with invalid HTTP headers and queuing of response RSTSTREAM frames, an attacker could cause a flood resulting in unbounded memory growth. The highest threat from this vulnerability is to system availability...

HTTP Request Smuggling

github.com/golang/go is vulnerable to HTTP request smuggling. The vulnerability exists as invalid HTTP/1.1 headers were accepted and normalized with a space before the colon, allowing a reverse proxy to interpret the headers differently...

CVE-2019-16869

Netty before 4.1.42.Final mishandles whitespace before the colon in HTTP headers such as a "Transfer-Encoding : chunked" line, which leads to HTTP request smuggling...

DEBIAN-CVE-2019-16869

Netty before 4.1.42.Final mishandles whitespace before the colon in HTTP headers such as a "Transfer-Encoding : chunked" line, which leads to HTTP request smuggling...

CVE-2019-16869

Netty before 4.1.42.Final mishandles whitespace before the colon in HTTP headers such as a "Transfer-Encoding : chunked" line, which leads to HTTP request smuggling...

CVE-2019-16869

Netty (Java) is affected by CVE-2019-16869: HTTP request smuggling due to whitespace before the colon in headers (e.g., Transfer-Encoding : chunked). This can allow a crafted request to poison caches, bypass WAFs, and enable related attacks as described. The core issue is in Netty versions before...

PT-2019-5206 · Apache +1 · Netty +1

Name of the Vulnerable Software and Affected Versions: Netty versions prior to 4.1.42.Final Description: The issue is related to the incorrect handling of whitespace before the colon in HTTP headers, such as a "Transfer-Encoding : chunked" line. This can lead to HTTP request smuggling, allowing a...

Fedora Update for kernel-headers FEDORA-2019-15e141c6a7

The remote host is missing an update for the Copyright C 2019 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

HTTP/2: flood using HEADERS frames results in unbounded memory growth

A flaw was found in HTTP/2. Using HEADER frames with invalid HTTP headers and queuing of response RSTSTREAM frames, an attacker could cause a flood resulting in unbounded memory growth. The highest threat from this vulnerability is to system availability...

go -- invalid headers are normalized, allowing request smuggling

The Go project reports: net/http through net/textproto used to accept and normalize invalid HTTP/1.1 headers with a space before the colon, in violation of RFC 7230. If a Go server is used behind a reverse proxy that accepts and forwards but doesn't normalize such invalid headers, the reverse pro...