Netty is an asynchronous event-driven network application framework for
rapid development of maintainable high performance protocol servers and
clients.
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.
CVE-2019-9515 - High Severity Vulnerability
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: /jetty-gcloud/jetty-gcloud-session-manager/pom.xml
Path to vulnerable library: /jetty-gcloud/jetty-gcloud-session-manager/pom.xml,/tests/test-sessions/test-gcloud-sessions/pom.xml
Dependency Hierarchy: - google-cloud-datastore-1.0.0.jar (Root Library) - datastore-v1-protos-1.3.0.jar - grpc-google-common-protos-0.1.0.jar - grpc-all-1.0.1.jar - grpc-netty-1.0.1.jar - :x: **netty-codec-http2-4.1.3.Final.jar** (Vulnerable Library)
Found in HEAD commit: b976400adf459c779b88fa83118b68aa39af14c7
Found in base branch: master
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
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.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 (com.google.cloud:google-cloud-datastore): 1.13.0
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