HTTP/2: flood using empty frames results in excessive resource consumption

A flaw was found in HTTP/2. Using frames with an empty payload, a flood could occur that results in excessive CPU usage and starvation of other clients. The highest threat from this vulnerability is to system availability...

openSUSE Security Update : tomcat (openSUSE-2020-1063)

This update for tomcat fixes the following issues: Tomcat was updated to 9.0.36 See changelog at - CVE-2020-11996: Fixed an issue which by sending a specially crafted sequence of HTTP/2 requests could have triggered high CPU usage for several seconds making potentially the server unresponsive...

FreeBSD : Apache Tomcat -- Multiple Vulnerabilities (6a72eff7-ccd6-11ea-9172-4c72b94353b5)

The Apache Software Foundation reports : An h2c direct connection did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests were made, an OutOfMemoryException could occur leading to a denial of service. The payload length in a WebSocket frame was...

SUSE-SU-2020:1983-1 Security update for tomcat

This update for tomcat fixes the following issues: Tomcat was updated to 9.0.36 See changelog at - CVE-2020-11996: Fixed an issue which by sending a specially crafted sequence of HTTP/2 requests could have triggered high CPU usage for several seconds making potentially the server unresponsive...

openSUSE: Security Advisory for mumble (openSUSE-SU-2020:1016-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2020 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...

openSUSE Security Update : mumble (openSUSE-2020-1016)

This update for mumble fixes the following issues : mumble was updated 1.3.2 : - client: Fixed overlay not starting Update to upstream version 1.3.1 - Security - Fixed: Potential exploit in the OCB2 encryption 4227 boo1174041 - ICE - Fixed: Added missing UserKDFIterations field to UserInfo =...

SUSE-SU-2020:1963-1 Security update for tomcat

This update for tomcat fixes the following issues: Tomcat was updated to 9.0.36 See changelog at - CVE-2020-11996: Fixed an issue which by sending a specially crafted sequence of HTTP/2 requests could have triggered high CPU usage for several seconds making potentially the server unresponsive...

SUSE-SU-2020:1962-1 Security update for tomcat

This update for tomcat fixes the following issues: Tomcat was updated to 9.0.36 See changelog at - CVE-2020-11996: Fixed an issue which by sending a specially crafted sequence of HTTP/2 requests could have triggered high CPU usage for several seconds making potentially the server unresponsive...

Fixed in Apache Tomcat 7.0.105

Important: WebSocket DoS CVE-2020-13935 The payload length in a WebSocket frame was not correctly validated. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service. This was fixed with commits f9f75c14 and 4c049828...

SUSE-SU-2020:1841-1 Security update for tomcat

This update for tomcat fixes the following issues: Tomcat was updated to 9.0.36 See changelog at - CVE-2020-11996: Fixed an issue which by sending a specially crafted sequence of HTTP/2 requests could have triggered high CPU usage for several seconds making potentially the server unresponsive...

Apache Tomcat 9.0.0.M1 < 9.0.36

The version of Tomcat installed on the remote host is prior to 9.0.36. It is, therefore, affected by a vulnerability as referenced in the fixedinapachetomcat9.0.36security-9 advisory. - A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.3...

DEBIAN-CVE-2020-11996

A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become...

CVE-2020-11996

A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become...

CVE-2020-11996

A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become...

Vulnerability fixed in Apache Tomcat

A vulnerability has been fixed in Apache Tomcat. A malicious party could potentially exploit the vulnerability to cause a Denial-of-Service on the Tomcat server. To do this the malicious party needs to send a specially crafted HTTP/2 request to the server. This request causes an increased CPU loa...

Fixed in Apache Tomcat 8.5.56

Important: HTTP/2 DoS CVE-2020-11996 A specially crafted sequence of HTTP/2 requests could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become unresponsive. This was fixed with commit c8acd2ab. Thi...

libexif Resource Management Error Vulnerability

libexif is a library of functions written in the C language. It is mainly used to read and write EXIF meta-information from graphics files. A security vulnerability exists in versions prior to libexif 0.6.22, which stems from the program failing to limit the size value when processing Canon EXIF...

MikroTik RouterOS Denial Of Service / Memory Corruption Vulnerability

MikroTik RouterOS suffers from two vulnerabilities. The cerm process suffers from an uncontrolled resource consumption issue. By sending a crafted packet, an authenticated remote user can cause a high cpu load, which may make the device respond slowly or unable to respond. Versions until stable...

WDS has a high CPU usage when many client computers try to start in Windows Server 2012 R2

WDS has a high CPU usage when many client computers try to start in Windows Server 2012 R2 This article describes an issue that occurs in Windows Server 2012 R2 that has Windows Deployment Services WDS installed. You can fix this issue by using the update in this article. Before you install this...

[SECURITY] [DSA 4644-1] tor security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4644-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff March 20, 2020 https://www.debian.org/security/faq -...