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HTTP/2 DoS attack vulnerabilities CVE-2019-9512 CVE-2019-9514 CVE-2019-9515 #2090

kazuho opened this issue Aug 12, 2019 · 0 comments


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commented Aug 12, 2019

Recently, a series of DoS attack vulnerabilities have been reported on a broad range of HTTP/2 stacks. Among the vulnerabilities, H2O is exposed to the following:

  • CVE-2019-9512 (Ping Flood)
  • CVE-2019-9514 (Reset Flood)
  • CVE-2019-9515 (Settings Flood)

These vulnerabilities have been fixed in version 2.2.6 and 2.3.0-beta2.

H2O is not vulnerable to CVE-2019-9511 (Data Dribble), CVE-2019-9513 (Resource Loop), CVE-2019-9516 (0-Length Headers Leak), CVE-2019-9517 (Internal Data Buffering), CVE-2019-9518 (Empty Frames Flood).

TBD: links to CVEs, acknowledgements.

@kazuho kazuho changed the title TBD HTTP/2 DoS attack vulnerabilities CVE-2019-9512 CVE-2019-9514 CVE-2019-9515 Aug 13, 2019

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