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Package · Alpine

h2o

4 known vulnerabilities.

All Critical High Medium Low Exploited only Public exploit

4 results · Feed

  • High 7.5
    CVE-2023-44487 Exploited Public exploit EPSS 100%

    HTTP/2 Stream Cancellation Attack

    The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.

    nodejs go dotnet7 trafficserver Debian Ubuntu Alpine Maven Go SwiftURL
    KEV Oct 10, 2023
  • High 7.5
    CVE-2019-9512 EPSS 83%

    Some HTTP/2 implementations are vulnerable to ping floods, potentially leading to a denial of service

    Some HTTP/2 implementations are vulnerable to ping floods, potentially leading to a denial of service. The attacker sends continual pings to an HTTP/2 peer, causing the peer to build an internal queue of responses. Depending on how efficiently this data is qu…

    go stdlib golang-1.8 golang-1.10 Debian Ubuntu Alpine Go
  • High 7.5
    CVE-2019-9515 EPSS 87%

    Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service

    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 …

    nodejs trafficserver netty trafficserver Debian Ubuntu Alpine
  • High 7.5
    CVE-2019-9514 EPSS 83%

    Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service

    Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service. The attacker opens a number of streams and sends an invalid request over each stream that should solicit a stream of RST_STREAM frames from the peer. Depe…

    nodejs go golang-1.8 golang-1.10 Debian Ubuntu Alpine