CVE-2021-41842

An issue was discovered in AtaLegacySmm in the kernel 5.0 before 05.08.46, 5.1 before 05.16.46, 5.2 before 05.26.46, 5.3 before 05.35.46, 5.4 before 05.43.46, and 5.5 before 05.51.45 in Insyde InsydeH2O. Code execution can occur because the SMI handler lacks a CommBuffer check...

CVE-2021-45969

An issue was discovered in AhciBusDxe in Insyde InsydeH2O with kernel 5.1 before 05.16.25, 5.2 before 05.26.25, 5.3 before 05.35.25, 5.4 before 05.43.25, and 5.5 before 05.51.25. A vulnerability exists in the SMM System Management Mode branch that registers a SWSMI handler that does not...

CVE-2021-45970

An issue was discovered in IdeBusDxe in Insyde InsydeH2O with kernel 5.1 before 05.16.25, 5.2 before 05.26.25, 5.3 before 05.35.25, 5.4 before 05.43.25, and 5.5 before 05.51.25. A vulnerability exists in the SMM System Management Mode branch that registers a SWSMI handler that does not sufficient...

CVE-2020-5955

An issue was discovered in Int15MicrocodeSmm in Insyde InsydeH2O before 2021-10-14 on Intel client chipsets. A caller may be able to escalate privileges...

OSV-2021-907 Heap-buffer-overflow in decode_header_value_literal

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35675 Crash type: Heap-buffer-overflow READ 1 Crash state: decodeheadervalueliteral decodeheader h2ohpackparserequest...

h2o -- uninitialised memory access in HTTP3

Emil Lerner reports: 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 been received. When h2o is used as a reverse proxy, an attacker can abuse this vulnerability to send internal state ...

xe-capsciences-h2o-2.systonic.net Improper Access Control vulnerability

Open Bug Bounty ID: OBB-1130133 Security Researcher error404 Helped patch 526 vulnerabilities Received 8 Coordinated Disclosure badges Received 20 recommendations , a holder of 8 badges for responsible and coordinated disclosure, found a security vulnerability affecting...

The vulnerability of the `connection.c` component of the HTTP/2 web server Apache Traffic Server, the H2O web server, Node.js software platform, and the SwiftNIO networking framework allows a attacker to cause a service failure.

The vulnerability of the connection.c component of the HTTP/2 web server Apache Traffic Server, the H2O web server, the Node.js software platform, and the SwiftNIO networking framework is related to errors in the resource consumption control mechanism. Exploiting this vulnerability can allow an...

The vulnerability relates to the implementation of the HTTP/2 network protocol on Windows operating systems, Apache Traffic Server web servers, H2O web servers, network programming tools such as netty, SwiftNIO, Envoy, and the Node.js software platform. This allows attackers to induce service failures.

The vulnerability of the HTTP/2 network protocol implementation in Windows operating systems, Apache Traffic Server web servers, H2O web servers, network programming tools such as netty, SwiftNIO, Envoy, and Node.js software platforms is related to an uncontrolled resource consumption. Exploiting...

Debian: Security Advisory (DSA-4508-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2019 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Debian DSA-4508-1 : h2o - security update (Ping Flood) (Reset Flood) (Settings Flood)

Three vulnerabilities were discovered in the HTTP/2 code of the H2O HTTP server, which could result in denial of service. C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted from Debian Security Advisory DSA-4508. The text itself is copyright C...

The vulnerability relates to the implementation of the HTTP/2 network protocol on Windows operating systems, Apache Traffic Server web servers, H2O web servers, network programming tools such as netty, SwiftNIO, Envoy, and the Node.js software platform. This allows attackers to induce service failures.

The vulnerability of the HTTP/2 network protocol implementation in Windows operating systems, Apache Traffic Server web servers, H2O web servers, network programming tools such as netty, SwiftNIO, Envoy, and Node.js software platforms is related to an uncontrolled resource consumption. Exploiting...

FreeBSD : h2o -- multiple HTTP/2 vulnerabilities (73b1e734-c74e-11e9-8052-0028f8d09152) (Ping Flood) (Reset Flood) (Settings Flood)

Jonathon Loomey of Netflix reports : HTTP/2 implementations do not robustly handle abnormal traffic and resource exhaustion 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 : -...

FreeBSD : h2o -- multiple HTTP/2 vulnerabilities (72a5579e-c765-11e9-8052-0028f8d09152) (Ping Flood) (Reset Flood) (Settings Flood)

Jonathon Loomey of Netflix reports : HTTP/2 implementations do not robustly handle abnormal traffic and resource exhaustion 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 : -...

[SECURITY] [DSA 4508-1] h2o security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4508-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff August 24, 2019 https://www.debian.org/security/faq -...

DSA-4508-1 h2o - security update

Bulletin has no description...

h2o -- multiple HTTP/2 vulnerabilities

Jonathon Loomey of Netflix reports: HTTP/2 implementations do not robustly handle abnormal traffic and resource exhaustion 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-2019-95...

h2o -- multiple HTTP/2 vulnerabilities

Jonathon Loomey of Netflix reports: HTTP/2 implementations do not robustly handle abnormal traffic and resource exhaustion 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-2019-95...

H2O H2O WebServer Heap Buffer Overflow (CVE-2018-0608)

A heap buffer overflow vulnerability has been reported in H2O web server. The Vulnerability is due to insufficient input validation when writing to the access log. A remote, unauthenticated attacker can trigger this vulnerability by sending a crafted message to the target server. Successful...

h2o/h2o-fuzzer-http2: Heap-buffer-overflow in emit_writereq_of_openref

Project: https://github.com/h2o/h2o.git Detailed report: https://oss-fuzz.com/testcase?key=5130696692072448 Project: h2o Fuzzer: aflh2o-fuzzer-http2 Fuzz target binary: h2o-fuzzer-http2 Job Type: aflasanh2o Platform Id: linux Crash Type: Heap-buffer-overflow READ 8 Crash Address: 0x60b0000001c8...