CVE-2019-9518 (High) detected in netty-codec-http2-4.1.27.Final.jar

[mend-bolt-for-github[bot]]

CVE-2019-9518 - High Severity Vulnerability

Vulnerable Library - netty-codec-http2-4.1.27.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: 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

Vulnerability Details

Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSH_PROMISE. The peer spends time processing each frame disproportionate to attack bandwidth. This can consume excess CPU.

Publish Date: 2019-08-13

URL: CVE-2019-9518

CVSS 3 Score Details (7.5)

Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://netty.io/news/2019/08/13/4-1-39-Final.html

Release Date: 2019-08-13

Fix Resolution (io.netty:netty-codec-http2): 4.1.39.Final

Direct dependency fix Resolution (io.grpc:grpc-netty): 1.23.1

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