Netty is an asynchronous event-driven network application framework for
rapid development of maintainable high performance protocol servers and
clients.
Path to vulnerable library: /home/wss-scanner/.gradle/caches/modules-2/files-2.1/io.netty/netty-codec-http2/4.1.27.Final/3769790a2033667d663f9a526d5b63cfecdbdf4e/netty-codec-http2-4.1.27.Final.jar
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 4.1.61.Final there is a vulnerability that enables request smuggling. The content-length header is not correctly validated if the request only uses a single Http2HeaderFrame with the endStream set to to true. This could lead to request smuggling if the request is proxied to a remote peer and translated to HTTP/1.1. This is a followup of GHSA-wm47-8v5p-wjpj/CVE-2021-21295 which did miss to fix this one case. This was fixed as part of 4.1.61.Final.
CVE-2021-21409 - Medium Severity Vulnerability
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.
Library home page: http://netty.io/
Path to dependency file: /build.gradle
Path to vulnerable library: /home/wss-scanner/.gradle/caches/modules-2/files-2.1/io.netty/netty-codec-http2/4.1.27.Final/3769790a2033667d663f9a526d5b63cfecdbdf4e/netty-codec-http2-4.1.27.Final.jar
Dependency Hierarchy: - grpc-netty-1.14.0.jar (Root Library) - :x: **netty-codec-http2-4.1.27.Final.jar** (Vulnerable Library)
Found in HEAD commit: 722089816e5192b667c19cb836256ef6da8be1ac
Found in base branch: master
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 4.1.61.Final there is a vulnerability that enables request smuggling. The content-length header is not correctly validated if the request only uses a single Http2HeaderFrame with the endStream set to to true. This could lead to request smuggling if the request is proxied to a remote peer and translated to HTTP/1.1. This is a followup of GHSA-wm47-8v5p-wjpj/CVE-2021-21295 which did miss to fix this one case. This was fixed as part of 4.1.61.Final.
Publish Date: 2021-03-30
URL: CVE-2021-21409
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: High - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: High - Availability Impact: None
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://github.com/netty/netty/security/advisories/GHSA-f256-j965-7f32
Release Date: 2021-03-30
Fix Resolution (io.netty:netty-codec-http2): 4.1.61.Final
Direct dependency fix Resolution (io.grpc:grpc-netty): 1.39.0
Step up your Open Source Security Game with Mend here