Description
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Netty prior to version 4.1.71.Final skips control chars when they are present at the beginning / end of the header name. It should instead fail fast as these are not allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause netty to "sanitize" header names before it forward these to another remote system when used as proxy. This remote system can't see the invalid usage anymore, and therefore does not do the validation itself. Users should upgrade to version 4.1.71.Final.
Published: 2021-12-09
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3268-1 netty security update
Debian DSA Debian DSA DSA-5316-1 netty security update
EUVD EUVD EUVD-2021-2607 Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Netty prior to version 4.1.71.Final skips control chars when they are present at the beginning / end of the header name. It should instead fail fast as these are not allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause netty to "sanitize" header names before it forward these to another remote system when used as proxy. This remote system can't see the invalid usage anymore, and therefore does not do the validation itself. Users should upgrade to version 4.1.71.Final.
Github GHSA Github GHSA GHSA-wx5j-54mm-rqqq HTTP request smuggling in netty
Ubuntu USN Ubuntu USN USN-6049-1 Netty vulnerabilities
History

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Subscriptions

Debian Debian Linux
Netapp Oncommand Workflow Automation Snapcenter
Netty Netty
Oracle Banking Deposits And Lines Of Credit Servicing Banking Party Management Banking Platform Coherence Communications Cloud Native Core Binding Support Function Communications Cloud Native Core Network Slice Selection Function Communications Cloud Native Core Policy Communications Cloud Native Core Security Edge Protection Proxy Communications Cloud Native Core Unified Data Repository Communications Design Studio Communications Instant Messaging Server Helidon Peoplesoft Enterprise Peopletools
Quarkus Quarkus
Redhat Amq Broker Amq Streams Jboss Data Grid Jboss Enterprise Application Platform Jboss Enterprise Bpms Platform Jboss Fuse Logging Quarkus Red Hat Single Sign On Satellite
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2024-08-04T04:03:08.898Z

Reserved: 2021-11-16T00:00:00.000Z

Link: CVE-2021-43797

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-12-09T19:15:07.960

Modified: 2024-11-21T06:29:48.490

Link: CVE-2021-43797

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-12-09T00:00:00Z

Links: CVE-2021-43797 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses