h2o vulnerabilities and exploits

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6.4

CVSSv2

Use-after-free vulnerability in H2O allows remote malicious users to cause a denial-of-service (DoS) or obtain server certificate private keys and possibly other information.

H2o Project H2o 2.1.0 Dena H2o

NA

H2O is vulnerable to stored XSS vulnerability which can lead to a Local File Include attack.

H2o H2o -

NA

An attacker is able to gain remote code execution on a server hosting the H2O dashboard through it's POJO model import feature.

H2o H2o -

NA

H2O included a reference to an S3 bucket that no longer existed allowing an malicious user to take over the S3 bucket URL.

H2o H2o -

NA

A Local File Inclusion (LFI) vulnerability exists in the h2o-3 REST API, allowing unauthenticated remote malicious users to read arbitrary files on the server with the permissions of the user running the h2o-3 instance. This issue affects the default installation and does not req...

H2o H2o -

NA

External Control of File Name or Path in h2oai/h2o-3

H2o H2o 3.40.0.4

NA

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. In version 2.3.0-beta2 and prior, when h2o is configured to listen to multiple addresses or ports with each of them using different backend servers managed by multiple entities, a malicious backend entity that al...

Dena H2o Dena H2o 2.3.0

NA

H2O is an HTTP server. In versions 2.3.0-beta2 and prior, when the reverse proxy handler tries to processes a certain type of invalid HTTP request, it tries to build an upstream URL by reading from uninitialized pointer. This behavior can lead to crashes or leak of information to...

Dena H2o Dena H2o 2.3.0

NA

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. The QUIC stack (quicly), as used by H2O up to commit 43f86e5 (in version 2.3.0-beta and prior), is susceptible to a state exhaustion attack. When H2O is serving HTTP/3, a remote attacker can exploit this vulnerab...

Dena H2o Dena H2o 2.3.0

5

CVSSv2

H2O versions 2.0.3 and previous versions and 2.1.0-beta2 and previous versions allows remote malicious users to cause a denial-of-service (DoS) via format string specifiers in a template file via fastcgi, mruby, proxy, redirect or reproxy.

Dena H2o Dena H2o 2.1.0

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