In Twisted Web through 19.10.0 there was an HTTP request splitting vulnerability. When presented with two content-length headers it ignored the first header. When the second content-length value was set to zero the request body was interpreted as a pipelined request.

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Security Bulletin: Netty Vulnerability Affects IBM Watson Machine Learning on CP4D (CVE-2021-21295)

Summary Netty is vulnerable to HTTP request smuggling, caused by improper validation of Content-Length header by the Http2MultiplexHandler on IBM Watson Machine Learning on CP4D Vulnerability Details CVEID: CVE-2021-21295 DESCRIPTION: Netty is vulnerable to HTTP request smuggling, caused by...

Updated varnish packages fix a security vulnerability

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...

MGASA-2021-0387 Updated varnish packages fix a security vulnerability

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...

MGASA-2021-0374 Updated netty packages fix security vulnerabilities

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...

The vulnerability of the Content-Length header in the Apache Traffic Server web server allows a hacker to compromise the integrity of the protected information.

The vulnerability of the Content-Length header in the Apache Traffic Server web server is related to deficiencies in HTTP request processing. Exploiting this vulnerability allows a malicious actor to compromise the integrity of the protected information...

Authorization Bypass

varnish is vulnerable to authorization bypass. The application allows request smuggling and VCL authorization bypass via a large Content-Length header for a POST request...

CVE-2021-36740

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...

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...

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...

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...

Authorization

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...

CVE-2021-36740

Varnish Cache, with HTTP/2 enabled, is vulnerable to request smuggling and VCL authorization bypass via a large Content-Length header in POST requests. Affected: Varnish Enterprise 6.0.x before 6.0.8r3; 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. Mitigati...

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...

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...

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...

CVE-2021-32715

hyper is an HTTP library for rust. hyper's HTTP/1 server code had a flaw that incorrectly parses and accepts requests with a Content-Length header with a prefixed plus sign, when it should have been rejected as illegal. This combined with an upstream HTTP proxy that doesn't parse such...

CVE-2021-32715

hyper is an HTTP library for rust. hyper's HTTP/1 server code had a flaw that incorrectly parses and accepts requests with a Content-Length header with a prefixed plus sign, when it should have been rejected as illegal. This combined with an upstream HTTP proxy that doesn't parse such...

CVE-2021-32715 Lenient Parsing of Content-Length Header When Prefixed with Plus Sign

hyper is an HTTP library for rust. hyper's HTTP/1 server code had a flaw that incorrectly parses and accepts requests with a Content-Length header with a prefixed plus sign, when it should have been rejected as illegal. This combined with an upstream HTTP proxy that doesn't parse such...