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CVE-2021-21295

Status Candidate

Overview

Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. 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 request is not proxied through as HTTP/1.1. If the request comes in as an HTTP/2 stream, gets converted into the HTTP/1.1 domain objects (`HttpRequest`, `HttpContent`, etc.) via `Http2StreamFrameToHttpObjectCodec `and then sent up to the child channel's pipeline and proxied through a remote peer as HTTP/1.1 this may result in request smuggling. In a proxy case, users may assume the content-length is validated somehow, which is not the case. If the request is forwarded to a backend channel that is a HTTP/1.1 connection, the Content-Length now has meaning and needs to be checked. An attacker can smuggle requests inside the body as it gets downgraded from HTTP/2 to HTTP/1.1. For an example attack refer to the linked GitHub Advisory. Users are only affected if all of this is true: `HTTP2MultiplexCodec` or `Http2FrameCodec` is used, `Http2StreamFrameToHttpObjectCodec` is used to convert to HTTP/1.1 objects, and these HTTP/1.1 objects are forwarded to another remote peer. This has been patched in 4.1.60.Final As a workaround, the user can do the validation by themselves by implementing a custom `ChannelInboundHandler` that is put in the `ChannelPipeline` behind `Http2StreamFrameToHttpObjectCodec`.

Related Files

Red Hat Security Advisory 2022-5498-01
Posted Jul 6, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-5498-01 - Red Hat Satellite is a systems management tool for Linux-based infrastructure. It allows for provisioning, remote management, and monitoring of multiple Linux deployments with a single centralized tool. Issues addressed include HTTP request smuggling, buffer overflow, bypass, code execution, cross site scripting, denial of service, heap overflow, information leakage, privilege escalation, remote shell upload, remote SQL injection, and traversal vulnerabilities.

tags | advisory, remote, web, denial of service, overflow, shell, vulnerability, code execution, xss, sql injection
systems | linux, redhat
advisories | CVE-2021-21290, CVE-2021-21295, CVE-2021-21409, CVE-2021-30151, CVE-2021-3200, CVE-2021-32839, CVE-2021-33928, CVE-2021-33929, CVE-2021-33930, CVE-2021-33938, CVE-2021-3584, CVE-2021-41136, CVE-2021-4142, CVE-2021-42550
SHA-256 | c0789250da6e85f6ddbf1eff137427983e596902d3fa57015a6fd21b598eac60
Red Hat Security Advisory 2021-5134-05
Posted Dec 15, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-5134-05 - This release of Red Hat Fuse 7.10.0 serves as a replacement for Red Hat Fuse 7.9, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References. Issues addressed include code execution, cross site scripting, denial of service, deserialization, information leakage, memory leak, privilege escalation, server-side request forgery, and traversal vulnerabilities.

tags | advisory, denial of service, vulnerability, code execution, xss, memory leak
systems | linux, redhat
advisories | CVE-2019-10744, CVE-2019-12415, CVE-2020-11987, CVE-2020-11988, CVE-2020-13943, CVE-2020-13949, CVE-2020-15522, CVE-2020-17521, CVE-2020-17527, CVE-2020-26217, CVE-2020-26259, CVE-2020-27218, CVE-2020-27223, CVE-2020-27782, CVE-2020-28491, CVE-2020-2875, CVE-2020-2934, CVE-2020-35510, CVE-2020-9488, CVE-2021-20218, CVE-2021-21290, CVE-2021-21295, CVE-2021-21341, CVE-2021-21342, CVE-2021-21343, CVE-2021-21344
SHA-256 | 9284d27525337878d1b616a42ec6964f345739a90a655ed05cfae5b196bdeacd
Red Hat Security Advisory 2021-3880-01
Posted Oct 20, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3880-01 - This release of Red Hat build of Quarkus 2.2.3 includes security updates, bug fixes, and enhancements. For more information, see the release notes page listed in the References section. Issues addressed include an information leakage vulnerability.

tags | advisory
systems | linux, redhat
advisories | CVE-2020-28491, CVE-2021-20289, CVE-2021-21290, CVE-2021-21295, CVE-2021-21409, CVE-2021-26291, CVE-2021-3642
SHA-256 | b29513db3b841e348c1c412387fb1dbe89dde6df1c0b96058ae480c121a6b7c3
Red Hat Security Advisory 2021-3700-01
Posted Sep 30, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3700-01 - AMQ Broker is a high-performance messaging implementation based on ActiveMQ Artemis. It uses an asynchronous journal for fast message persistence, and supports multiple languages, protocols, and platforms. This release of Red Hat AMQ Broker 7.9.0 serves as a replacement for Red Hat AMQ Broker 7.8.2, and includes security and bug fixes, and enhancements. For further information, refer to the release notes linked to in the References section. Issues addressed include bypass, denial of service, information leakage, resource exhaustion, and traversal vulnerabilities.

tags | advisory, denial of service, vulnerability, protocol
systems | linux, redhat
advisories | CVE-2020-13956, CVE-2020-27223, CVE-2021-20289, CVE-2021-21290, CVE-2021-21295, CVE-2021-21409, CVE-2021-28163, CVE-2021-28164, CVE-2021-28165, CVE-2021-28169, CVE-2021-29425, CVE-2021-3425, CVE-2021-34428, CVE-2021-34429, CVE-2021-3763
SHA-256 | a8a12dcc50fccbe685347bca1c58d45fbfe797cf6ab2e35bef81923f2d3fef9b
Red Hat Security Advisory 2021-3660-01
Posted Sep 24, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3660-01 - Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly application runtime. This release of Red Hat JBoss Enterprise Application Platform 7.4.1 serves as a replacement for Red Hat JBoss Enterprise Application Platform 7.4.0 and includes bug fixes and enhancements. See the Red Hat JBoss Enterprise Application Platform 7.4.1 Release Notes for information about the most significant bug fixes and enhancements included in this release. Issues addressed include code execution, cross site scripting, denial of service, and traversal vulnerabilities.

tags | advisory, java, denial of service, vulnerability, code execution, xss
systems | linux, redhat
advisories | CVE-2020-13936, CVE-2021-21295, CVE-2021-21409, CVE-2021-28170, CVE-2021-29425, CVE-2021-3536, CVE-2021-3597, CVE-2021-3642, CVE-2021-3644, CVE-2021-3690
SHA-256 | 8bbceba9cbd43ed995bb0158809bfa86c293205d85398c40f9274bb087d0a7b4
Red Hat Security Advisory 2021-3658-01
Posted Sep 24, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3658-01 - Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly application runtime. This release of Red Hat JBoss Enterprise Application Platform 7.4.1 serves as a replacement for Red Hat JBoss Enterprise Application Platform 7.4.0 and includes bug fixes and enhancements. See the Red Hat JBoss Enterprise Application Platform 7.4.1 Release Notes for information about the most significant bug fixes and enhancements included in this release. Issues addressed include code execution, cross site scripting, denial of service, and traversal vulnerabilities.

tags | advisory, java, denial of service, vulnerability, code execution, xss
systems | linux, redhat
advisories | CVE-2020-13936, CVE-2021-21295, CVE-2021-21409, CVE-2021-28170, CVE-2021-29425, CVE-2021-3536, CVE-2021-3597, CVE-2021-3642, CVE-2021-3644, CVE-2021-3690
SHA-256 | 0c1ca183150c4fd0104f07fbd5ecaa37a253605e363351d7d98a6c4fd259f6f4
Red Hat Security Advisory 2021-3656-01
Posted Sep 24, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3656-01 - Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly application runtime. This release of Red Hat JBoss Enterprise Application Platform 7.4.1 serves as a replacement for Red Hat JBoss Enterprise Application Platform 7.4.0 and includes bug fixes and enhancements. See the Red Hat JBoss Enterprise Application Platform 7.4.1 Release Notes for information about the most significant bug fixes and enhancements included in this release. Issues addressed include code execution, cross site scripting, denial of service, and traversal vulnerabilities.

tags | advisory, java, denial of service, vulnerability, code execution, xss
systems | linux, redhat
advisories | CVE-2020-13936, CVE-2021-21295, CVE-2021-21409, CVE-2021-28170, CVE-2021-29425, CVE-2021-3536, CVE-2021-3597, CVE-2021-3642, CVE-2021-3644, CVE-2021-3690
SHA-256 | 08a3af8cbe1870441f18018302c3b12597f297139b17c3e59677079ae81cc243
Red Hat Security Advisory 2021-3225-01
Posted Aug 31, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3225-01 - Red Hat AMQ Streams, based on the Apache Kafka project, offers a distributed backbone that allows microservices and other applications to share data with extremely high throughput and extremely low latency. This release of Red Hat AMQ Streams 1.8.0 serves as a replacement for Red Hat AMQ Streams 1.7.0, and includes security and bug fixes, and enhancements. Issues addressed include information leakage, resource exhaustion, and traversal vulnerabilities.

tags | advisory, vulnerability
systems | linux, redhat
advisories | CVE-2017-18640, CVE-2021-21290, CVE-2021-21295, CVE-2021-21409, CVE-2021-27568, CVE-2021-28163, CVE-2021-28164, CVE-2021-28165, CVE-2021-28168, CVE-2021-28169, CVE-2021-29425, CVE-2021-34428
SHA-256 | f799cc6edbac4d0b98864f1662ed210d6e06f745c7ff0e79f347ad596baa1447
Red Hat Security Advisory 2021-2755-01
Posted Jul 15, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2755-01 - These are CVE issues filed against XP2 releases that have been fixed in the underlying EAP 7.3.x base, so no changes to the EAP XP2 code base. Issues addressed include bypass, code execution, cross site scripting, and information leakage vulnerabilities.

tags | advisory, vulnerability, code execution, xss
systems | linux, redhat
advisories | CVE-2020-13936, CVE-2020-15522, CVE-2020-28052, CVE-2021-20220, CVE-2021-20250, CVE-2021-21290, CVE-2021-21295, CVE-2021-21409, CVE-2021-3536
SHA-256 | 31ae69e9f08af4355de9d2d62aa94a61d534a59f0507a16500efa8303f69b4d5
Red Hat Security Advisory 2021-2689-01
Posted Jul 13, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2689-01 - AMQ Broker is a high-performance messaging implementation based on ActiveMQ Artemis. It uses an asynchronous journal for fast message persistence, and supports multiple languages, protocols, and platforms. This release of Red Hat AMQ Broker 7.8.2 serves as a replacement for Red Hat AMQ Broker 7.8.1, and includes security and bug fixes, and enhancements. For further information, refer to the release notes linked to in the References section. Issues addressed include denial of service, information leakage, and resource exhaustion vulnerabilities.

tags | advisory, denial of service, vulnerability, protocol
systems | linux, redhat
advisories | CVE-2020-27223, CVE-2021-21290, CVE-2021-21295, CVE-2021-21409, CVE-2021-28163, CVE-2021-28164, CVE-2021-28165, CVE-2021-3425
SHA-256 | 797ae866913245376a53ab9b2027c144a57e156f08fb0901e02b9cb20c189fda
Red Hat Security Advisory 2021-2139-01
Posted May 27, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2139-01 - Red Hat Data Grid is a distributed, in-memory data store. This release of Red Hat Data Grid 8.2.0 serves as a replacement for Red Hat Data Grid 8.1.1, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References. Issues addressed include bypass, code execution, denial of service, information leakage, and server-side request forgery vulnerabilities.

tags | advisory, denial of service, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-10771, CVE-2020-26258, CVE-2020-26259, CVE-2021-21290, CVE-2021-21295, CVE-2021-21341, CVE-2021-21342, CVE-2021-21343, CVE-2021-21344, CVE-2021-21345, CVE-2021-21346, CVE-2021-21347, CVE-2021-21348, CVE-2021-21349, CVE-2021-21350, CVE-2021-21351, CVE-2021-21409, CVE-2021-31917
SHA-256 | 26b79e23d99e81d46adcd853630427afc565a8681dad9bf539101220d92dd7b9
Red Hat Security Advisory 2021-2070-01
Posted May 20, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2070-01 - Red Hat Single Sign-On 7.4 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications. This release of Red Hat Single Sign-On 7.4.7 serves as a replacement for Red Hat Single Sign-On 7.4.6, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References. Issues addressed include an information leakage vulnerability.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2021-21290, CVE-2021-21295, CVE-2021-3424, CVE-2021-3461
SHA-256 | 7578f5d5a1382ac369ceea4ea502ae58bc21dcff6d70b2118e08a915a5e53ffc
Red Hat Security Advisory 2021-2046-01
Posted May 19, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2046-01 - Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly application runtime. This release of Red Hat JBoss Enterprise Application Platform 7.3.7 serves as a replacement for Red Hat JBoss Enterprise Application Platform 7.3.6, and includes bug fixes and enhancements. See the Red Hat JBoss Enterprise Application Platform 7.3.7 Release Notes for information about the most significant bug fixes and enhancements included in this release. Issues addressed include code execution and information leakage vulnerabilities.

tags | advisory, java, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-13936, CVE-2021-21290, CVE-2021-21295
SHA-256 | 043a6f6a9cfe9c7046ca82739162918a0e527d7663f0019c5edbce05f97eb4de
Red Hat Security Advisory 2021-2047-01
Posted May 19, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2047-01 - Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly application runtime. This release of Red Hat JBoss Enterprise Application Platform 7.3.7 serves as a replacement for Red Hat JBoss Enterprise Application Platform 7.3.6, and includes bug fixes and enhancements. See the Red Hat JBoss Enterprise Application Platform 7.3.7 Release Notes for information about the most significant bug fixes and enhancements included in this release. Issues addressed include code execution and information leakage vulnerabilities.

tags | advisory, java, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-13936, CVE-2021-21290, CVE-2021-21295
SHA-256 | ed7734327758b9c89319e9197add77cd3b5da050adc01c5d3d10bfd286e9c841
Red Hat Security Advisory 2021-2048-01
Posted May 19, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2048-01 - Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly application runtime. This release of Red Hat JBoss Enterprise Application Platform 7.3.7 serves as a replacement for Red Hat JBoss Enterprise Application Platform 7.3.6, and includes bug fixes and enhancements. See the Red Hat JBoss Enterprise Application Platform 7.3.7 Release Notes for information about the most significant bug fixes and enhancements included in this release. Issues addressed include code execution and information leakage vulnerabilities.

tags | advisory, java, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-13936, CVE-2021-21290, CVE-2021-21295
SHA-256 | a8f5161badac2eaeaa876d375ac5a2afb2daa06d42959d6ec7768b1ad167cdbd
Red Hat Security Advisory 2021-2051-01
Posted May 19, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2051-01 - Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly application runtime. This release of Red Hat JBoss Enterprise Application Platform 7.3.7 serves as a replacement for Red Hat JBoss Enterprise Application Platform 7.3.6, and includes bug fixes and enhancements. See the Red Hat JBoss Enterprise Application Platform 7.3.7 Release Notes for information about the most significant bug fixes and enhancements included in this release. Issues addressed include code execution and information leakage vulnerabilities.

tags | advisory, java, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-13936, CVE-2021-21290, CVE-2021-21295
SHA-256 | eea68a7e40f04a97fa40b7bfcdd75f32469ded5a111baf2a99ddfd59a958e156
Red Hat Security Advisory 2021-1511-01
Posted May 6, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1511-01 - Red Hat AMQ Clients enable connecting, sending, and receiving messages over the AMQP 1.0 wire transport protocol to or from AMQ Broker 6 and 7. This update provides various bug fixes and enhancements in addition to the client package versions previously released on Red Hat Enterprise Linux 7 and 8. Issues addressed include an information leakage vulnerability.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2021-21290, CVE-2021-21295, CVE-2021-21409
SHA-256 | 387d5225b90090472ff8b9f0012515e87a3db7b6ae3622b3eb769acfc9779fbe
Debian Security Advisory 4885-1
Posted Apr 28, 2021
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4885-1 - Multiple security issues were discovered in Netty, a Java NIO client/server framework, which could result in HTTP request smuggling, denial of service or information disclosure.

tags | advisory, java, web, denial of service, info disclosure
systems | linux, debian
advisories | CVE-2019-20444, CVE-2019-20445, CVE-2020-11612, CVE-2020-7238, CVE-2021-21290, CVE-2021-21295, CVE-2021-21409
SHA-256 | 6a526fc31321b64c4acb5653a9654f65c2eb9bacc8eeae0a6e619452216f22f7
Red Hat Security Advisory 2021-0943-01
Posted Mar 31, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0943-01 - This release of Red Hat build of Eclipse Vert.x 4.0.3 includes security updates, bug fixes, and enhancements. For more information, see the release notes listed in the References section. Issues addressed include an information leakage vulnerability.

tags | advisory
systems | linux, redhat
advisories | CVE-2021-21290, CVE-2021-21295
SHA-256 | 27c674ff4f5e0a45d001eff7db180d83be456fa355fe2cf5504e6c2520ed865c
Red Hat Security Advisory 2021-0986-01
Posted Mar 25, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0986-01 - The release of Red Hat AMQ Online 1.7.0 serves as a replacement for earlier AMQ Online releases, and includes bug fixes and enhancements, which are documented in the Release Notes document linked in the References. Issues addressed include information leakage and traversal vulnerabilities.

tags | advisory, vulnerability
systems | linux, redhat
advisories | CVE-2021-20218, CVE-2021-21290, CVE-2021-21295
SHA-256 | 23990e2f898aef17b77d80cf4cd02c8a28de9443759dcc3226d9242052bb06f8
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