4517 matches found
CVE-2019-9512
CVE-2019-9512 is a HTTP/2 denial-of-service issue caused by ping floods that can trigger unbounded memory/CPU growth. Connected advisories confirm concrete remediation paths across environments: for Go-based HTTP/2 stacks, upgrading Go to 1.12.8 or newer (addresses CVE-2019-9512/9514 and related ...
CVE-2019-9517
CVE-2019-9517 describes an attack against some HTTP/2 implementations where unconstrained internal data buffering can cause a denial of service. The vulnerability arises when an attacker floods a connection with a large number of requests for a large response object while manipulating HTTP/2 flow...
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...
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...
Excessive memory usage in HTTP/2 with zero length headers
Excessive memory usage in HTTP/2 with zero length headers Severity: low CVE-2019-9516 Not vulnerable: 1.17.3+, 1.16.1+ Vulnerable: 1.9.5-1.17.2...
CVE-2019-9513 Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a denial of service
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...
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-2019-9513
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...
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-2019-9518
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...
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-2019-9511
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 ...
Microsoft Windows 'HTTP.sys' CVE-2019-9513 Denial of Service Vulnerability
Description Microsoft Windows is prone to a remote denial-of-service vulnerability. An attacker can exploit this issue to cause the affected system to become unresponsive, resulting in a denial-of-service condition. Technologies Affected Microsoft Windows 10 Version 1607 for 32-bit Systems...
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...
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...