CVE-2021-3629

CVE-2021-3629 affects Undertow. The vulnerability is a flow-control handling issue over HTTP/2 that may cause overhead or a denial of service, impacting availability. Affected versions are Undertow prior to 2.0.40.Final and prior to 2.2.11.Final. Remediation: upgrade to Undertow 2.0.40.Final or 2...

Denial of Service (DoS)

Overview Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 is a package providing a default set of APIs for building an ASP.NET Core application. Contains assets used for self-contained deployments. Affected versions of this package are vulnerable to Denial of Service DoS due to the way the Kestr...

GHSA-242J-2GM6-5RWX ASP.NET Core and Visual Studio Denial of Service Vulnerability

A denial-of-service vulnerability exists in the way Kestrel parses HTTP/2 requests. The security update addresses the vulnerability by fixing the way the Kestrel parses HTTP/2 requests. Users are advised to upgrade...

ASP.NET Core and Visual Studio Denial of Service Vulnerability

A denial-of-service vulnerability exists in the way Kestrel parses HTTP/2 requests. The security update addresses the vulnerability by fixing the way the Kestrel parses HTTP/2 requests. Users are advised to upgrade...

GHSA-39QC-96H7-956F golang.org/x/net/http vulnerable to a reset flood

Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service. Servers that accept direct connections from untrusted clients could be remotely made to allocate an unlimited amount of memory, until the program crashes. The attacker opens a number of stream...

golang.org/x/net/http vulnerable to a reset flood

Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service. Servers that accept direct connections from untrusted clients could be remotely made to allocate an unlimited amount of memory, until the program crashes. The attacker opens a number of stream...

golang.org/x/net/http vulnerable to ping floods

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,...

GHSA-HGR8-6H9X-F7Q9 golang.org/x/net/http vulnerable to ping floods

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,...

Uncontrolled Resource Consumption

Some HTTP/2 implementations is 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,...

Allocation of Resources Without Limits or Throttling

Some HTTP/2 implementations is 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 RSTSTRE...

Uncontrolled Resource Consumption

Some HTTP/2 implementations is 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,...

Allocation of Resources Without Limits or Throttling

Some HTTP/2 implementations is 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 RSTSTRE...

CVE-2021-3629: Uncontrolled Resource Consumption

A flaw was found in Undertow. A potential security issue in flow control handling by the browser over http/2 may potentially cause overhead or a denial of service in the server. The highest threat from this vulnerability is availability. This flaw affects Undertow versions prior to 2.0.40.Final a...

HC Custom WP-Admin URL <= 1.4 - Unauthenticated Secret URL Disclosure

The plugin leaks the secret login URL when sending a specific crafted request curl -sIXGET -H "Cookie: validloginslug=1" https://example.com/wp-login.php HTTP/2 302 x-redirect-by: WordPress location: secret...

Oracle Linux 8 : httpd:2.4 (ELSA-2022-1915)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2022-1915 advisory. - Resolves: 2035030 - CVE-2021-44224 httpd:2.4/httpd: possible NULL dereference or SSRF in forward proxy configurations Tenable has extracted the...

priority vulnerable to denial of service

A HTTP/2 implementation built using any version of the Python priority library prior to version 1.2.0 could be targeted by a malicious peer by having that peer assign priority information for every possible HTTP/2 stream ID. The priority tree would happily continue to store the priority informati...

CVE-2020-7238

A flaw was found in Netty, where it mishandles Transfer-Encoding whitespace. This flaw allows HTTP Request Smuggling. Mitigation Use HTTP/2 instead clear boundaries between requests Disable reuse of backend connections eg. http-reuse never in HAProxy or whatever equivalent LB settings...

CVE-2019-20445

A flaw was found in Netty before version 4.1.44, where it accepted multiple Content-Length headers and also accepted both Transfer-Encoding, as well as Content-Length headers where it should reject the message under such circumstances. In circumstances where Netty is used in the context of a...

CVE-2019-9512

A flaw was found in HTTP/2. Using PING frames and queuing of response PING ACK frames, a flood attack could occur resulting in unbounded memory growth. The highest threat from this vulnerability is to system availability...

GHSA-698C-2X4J-G9GQ Improper Restriction of Operations within the Bounds of a Memory Buffer in Apache Tomcat

The HTTP/2 header parser in Apache Tomcat 9.0.0.M1 to 9.0.0.M11 and 8.5.0 to 8.5.6 entered an infinite loop if a header was received that was larger than the available buffer. This made a denial of service attack possible...