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dena h2o vulnerabilities and exploits
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NA
CVE-2023-41337
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
4.3
CVSSv2
CVE-2016-1133
CRLF injection vulnerability in the on_req function in lib/handler/redirect.c in H2O prior to 1.6.2 and 1.7.x prior to 1.7.0-beta3 allows remote malicious users to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a crafted URI.
Dena H2o
Dena H2o 1.7.0
NA
CVE-2023-50247
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
NA
CVE-2023-30847
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
5
CVSSv2
CVE-2016-4864
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
6.4
CVSSv2
CVE-2016-7835
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
5
CVSSv2
CVE-2017-10868
H2O version 2.2.2 and previous versions allows remote malicious users to cause a denial of service in the server via specially crafted HTTP/1 header.
Dena H2o
7.5
CVSSv2
CVE-2018-0608
Buffer overflow in H2O version 2.2.4 and previous versions allows remote malicious users to execute arbitrary code or cause a denial of service (DoS) via unspecified vectors.
Dena H2o
5
CVSSv2
CVE-2016-4817
lib/http2/connection.c in H2O prior to 1.7.3 and 2.x prior to 2.0.0-beta5 mishandles HTTP/2 disconnection, which allows remote malicious users to cause a denial of service (use-after-free and application crash) or possibly execute arbitrary code via a crafted packet.
Dena H2o
4.3
CVSSv2
CVE-2021-43848
h2o is an open source http server. In code prior to the `8c0eca3` commit h2o may attempt to access uninitialized memory. When receiving QUIC frames in certain order, HTTP/3 server-side implementation of h2o can be misguided to treat uninitialized memory as HTTP/3 frames that have...
Dena H2o
1 Github repository
CVSSv2
CVSSv2
CVSSv3
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