CVE-2019-9515: Uncontrolled Resource Consumption

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 empty SETTINGS frame is almost...

CVE-2019-9518: Uncontrolled Resource Consumption

Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSHPROMISE. The peer spends ti...

HTTP/2 CVE-2019-9517 Remote Denial of Service Vulnerability

Description HTTP/2 is prone to a remote denial-of-service vulnerability. Attackers can exploit this issue to consume excess memory, denying service to legitimate users. Technologies Affected Apache Apache 2.4.20 Apache Apache 2.4.23 Apache Apache 2.4.25 Apache Apache 2.4.26 Apache Apache 2.4.27...

CVE-2019-9512: Uncontrolled Resource Consumption

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 queued, this can consume excess CPU,...

CVE-2019-9516: Uncontrolled Resource Consumption

Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service. The attacker sends a stream of headers with a 0-length header name and 0-length header value, optionally Huffman encoded into 1-byte or greater headers. Some implementations allocate memory fo...

About the security content of SwiftNIO HTTP/2 1.5.0

About the security content of SwiftNIO HTTP/2 1.5.0 This document describes the security content of SwiftNIO HTTP/2 1.5.0. About Apple security updates For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or...

CVE-2019-9515

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 empty SETTINGS frame is almost...

CVE-2019-9514: Uncontrolled Resource Consumption

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 RSTSTREAM frames from the peer. Depending on how the peer queues the...

CVE-2019-9514

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 RSTSTREAM frames from the peer. Depending on how the peer queues the...

CVE-2019-9516

Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service. The attacker sends a stream of headers with a 0-length header name and 0-length header value, optionally Huffman encoded into 1-byte or greater headers. Some implementations allocate memory fo...

CVE-2019-9517: Uncontrolled Resource Consumption

Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write many of the byt...

CVE-2019-9514

CVE-2019-9514 corresponds to an HTTP/2 vulnerability where an attacker floods a peer by sending HEADERS frames, causing unbounded memory growth and potential DoS. Public details in connected advisories show affected stacks include Go HTTP/2 implementations and Go-based tools, with remediation via...

CVE-2019-9517

Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write many of the byt...

CVE-2019-9514

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 RSTSTREAM frames from the peer. Depending on how the peer queues the...

KB4512508: Windows 10 Version 1903 August 2019 Security Update

The remote Windows host is missing security update 4512508. It is, therefore, affected by multiple vulnerabilities : - An elevation of privilege vulnerability exists in the way that the Windows kernel image handles objects in memory. An attacker who successfully exploited the vulnerability could...

CVE-2019-9514 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 RSTSTREAM frames from the peer. Depending on how the peer queues the...

PT-2019-3017

Name of the Vulnerable Software and Affected Versions HTTP/2 implementations affected versions not specified golang.org/x/net/http2 affected versions not specified Arista EOS with TerminAttr and OpenConfig enabled Arista CloudVision Portal ingest component in the CVP Backend Arista Wi-Fi software...

CVE-2019-9518

Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSHPROMISE. The peer spends ti...

CVE-2019-9514

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 RSTSTREAM frames from the peer. Depending on how the peer queues the...

HTTP/2 implementations do not robustly handle abnormal traffic and resource exhaustion

Overview Multiple HTTP/2 implementations are vulnerable to a variety of denial-of-service DoS attacks. Description The Security Considerations section of RFC7540 discusses some of the considerations needed for HTTP/2 connections as they demand more resources to operate than HTTP/1.1 connections...