CVE-2019-9515 (High) detected in netty-codec-http2-4.1.8.Final.jar

Vulnerable Library - netty-codec-http2-4.1.8.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: /samples/client/petstore/java/vertx/build.gradle

Path to vulnerable library: /home/wss-scanner/.gradle/caches/modules-2/files-2.1/io.netty/netty-codec-http2/4.1.8.Final/105a99ee5767463370ccc3d2e16800bd99f5648e/netty-codec-http2-4.1.8.Final.jar

Dependency Hierarchy:

• vertx-web-client-3.4.2.jar (Root Library)
  • vertx-core-3.4.2.jar
    • ❌ netty-codec-http2-4.1.8.Final.jar (Vulnerable Library)

Found in HEAD commit: 4b7a8d7d7384aa6a27d6309c35ade0916edae7ed

Found in base branch: master

Vulnerability Details

Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.

Publish Date: 2019-08-13

URL: CVE-2019-9515

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

Suggested Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9515

Release Date: 2019-08-13

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

Direct dependency fix Resolution (io.vertx:vertx-web-client): 3.5.0