CVE-2021-21409
Publication date 30 March 2021
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
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.
Status
Package | Ubuntu Release | Status |
---|---|---|
netty | 24.10 oracular |
Needs evaluation
|
24.04 LTS noble |
Needs evaluation
|
|
22.04 LTS jammy |
Fixed 1:4.1.48-4+deb11u1build0.22.04.1
|
|
20.04 LTS focal |
Fixed 1:4.1.45-1ubuntu0.1~esm1
|
|
18.04 LTS bionic |
Fixed 1:4.1.7-4ubuntu0.1+esm2
|
|
16.04 LTS xenial |
Fixed 1:4.0.34-1ubuntu0.1~esm1
|
|
14.04 LTS trusty | Ignored end of ESM support, was needs-triage |
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Get Ubuntu ProSeverity score breakdown
Parameter | Value |
---|---|
Base score | 5.9 · Medium |
Attack vector | Network |
Attack complexity | High |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | High |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |
References
Related Ubuntu Security Notices (USN)
- USN-6049-1
- Netty vulnerabilities
- 28 April 2023