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Uncontrolled Resource Consumption

CVE-2019-9512

High
7.5/10

Summary

Some HTTP/2 implementations are vulnerable to ping floods, potentially leading to a Denial of Service. The attacker sends continuous pings to an HTTP/2 peer, causing the peer to build an internal queue of responses. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both. This issue affects Go-github.com/golang/net and Go-golang.org/x/net versions prior to 0.0.0-20190813141303-74dc4d7220e7, Cpp-h2o versions prior to 2.2.6, Cpp-trafficserver versions 6.x, 7.0.x prior to 7.1.7-rc0 and 8.0.x prior to 8.0.4-rc0, and Maven-io.netty:netty-codec-http2 and Maven-io.netty:netty-all versions prior to 4.1.39.Final.

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • NONE
  • NONE
  • HIGH

CWE-400 - Uncontrolled resource consumption

An uncontrolled resource allocation attack (also known as resource exhaustion attack) triggers unauthorized overconsumption of the limited resources in an application, such as memory, file system storage, database connection pool entries, and CPU. This may lead to denial of service for valid users and degradation of the application's functionality as well as that of the host operating system.

References

Advisory Timeline

  • Published