CVE-2019-9511

Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service. The attacker requests a large amount of data from a specified resource over multiple streams. They manipulate window size and stream priority ...

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-2019-9517

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-2019-9512

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,...

HTTP/2 Server Denial of Service Vulnerability

A denial of service vulnerability exists in the HTTP/2 protocol stack HTTP.sys when HTTP.sys improperly parses specially crafted HTTP/2 requests. An attacker who successfully exploited the vulnerability could create a denial of service condition, causing the target system to become unresponsive. ...

HTTP/2 Server Denial of Service Vulnerability

A denial of service vulnerability exists in the HTTP/2 protocol stack HTTP.sys when HTTP.sys improperly parses specially crafted HTTP/2 requests. An attacker who successfully exploited the vulnerability could create a denial of service condition, causing the target system to become unresponsive. ...

HTTP/2 Server Denial of Service Vulnerability

A denial of service vulnerability exists in the HTTP/2 protocol stack HTTP.sys when HTTP.sys improperly parses specially crafted HTTP/2 requests. An attacker who successfully exploited the vulnerability could create a denial of service condition, causing the target system to become unresponsive. ...

HTTP/2 Server Denial of Service Vulnerability

A denial of service vulnerability exists in the HTTP/2 protocol stack HTTP.sys when HTTP.sys improperly parses specially crafted HTTP/2 requests. An attacker who successfully exploited the vulnerability could create a denial of service condition, causing the target system to become unresponsive. ...

HTTP/2 Server Denial of Service Vulnerability

A denial of service vulnerability exists in the HTTP/2 protocol stack HTTP.sys when HTTP.sys improperly parses specially crafted HTTP/2 requests. An attacker who successfully exploited the vulnerability could create a denial of service condition, causing the target system to become unresponsive. ...

About the security content of SwiftNIO HTTP/2 1.5.0 - Apple Support

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 releases are available. Recent releases are listed on the Apple security updates page. Apple security documents reference...

CVE-2019-9513

Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a denial of service. The attacker creates multiple request streams and continually shuffles the priority of the streams in a way that causes substantial churn to the priority tree. This can consume excess CPU...

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...

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...

KB4511553: Windows 10 Version 1809 and Windows Server 2019 August 2019 Security Update

The remote Windows host is missing security update 4511553. 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...

KB4512507: Windows 10 Version 1703 August 2019 Security Update

The remote Windows host is missing security update 4512507. It is, therefore, affected by multiple vulnerabilities : - An elevation of privilege vulnerability exists when Windows improperly handles calls to Advanced Local Procedure Call ALPC. An attacker who successfully exploited this...

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-2019-9512

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-2019-9514

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-2019-9514

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...

KB4512501: Windows 10 Version 1803 August 2019 Security Update

The remote Windows host is missing security update 4512501. It is, therefore, affected by multiple vulnerabilities : - An elevation of privilege vulnerability exists when Windows improperly handles calls to Advanced Local Procedure Call ALPC. An attacker who successfully exploited this...