CVE-2021-21409 (Medium) detected in netty-all-4.1.42.Final.jar

[mend-for-github-com[bot]]

CVE-2021-21409 - Medium Severity Vulnerability

Vulnerable Library - netty-all-4.1.42.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Library home page: https://netty.io/

Path to dependency file: /foxtrot-server/pom.xml

Path to vulnerable library: /foxtrot-server/pom.xml

Dependency Hierarchy: - :x: **netty-all-4.1.42.Final.jar** (Vulnerable Library)

Found in HEAD commit: ffb8a6014463ce8aac1bf6e7dc9a23fc4a2a8adc

Found in base branch: master

Vulnerability Details

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

CVSS 3 Score Details (5.9)

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.

Suggested Fix

Type: Upgrade version

Origin: https://github.com/netty/netty/security/advisories/GHSA-f256-j965-7f32

Release Date: 2021-03-30

Fix Resolution: 4.1.61.Final

---

• [ ] Check this box to open an automated fix PR

[mend-for-github-com[bot]]

:heavy_check_mark: This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.

[mend-for-github-com[bot]]

:information_source: This issue was automatically re-opened by Mend because the vulnerable library in the specific branch(es) has been detected in the Mend inventory.