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CVE-2019-9517

Status Candidate

Overview

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 bytes on the wire. The attacker then sends a stream of requests for a large response object. Depending on how the servers queue the responses, this can consume excess memory, CPU, or both.

Related Files

Red Hat Security Advisory 2019-3935-01
Posted Nov 20, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-3935-01 - Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products, and is packaged under Red Hat JBoss Core Services to allow for faster distribution of updates, and for a more consistent update experience. This release adds the new Apache HTTP Server 2.4.37 packages that are part of the JBoss Core Services offering. This release serves as a replacement for Red Hat JBoss Core Services Pack Apache Server 2.4.29 and includes bug fixes and enhancements. Issues addressed include bypass and denial of service vulnerabilities.

tags | advisory, web, denial of service, vulnerability
systems | linux, redhat
advisories | CVE-2018-0734, CVE-2018-0737, CVE-2018-17189, CVE-2018-17199, CVE-2018-5407, CVE-2019-0196, CVE-2019-0197, CVE-2019-0217, CVE-2019-9511, CVE-2019-9513, CVE-2019-9516, CVE-2019-9517
MD5 | 0af89b59842b2ecbba84f7d4a87d4157
Red Hat Security Advisory 2019-3932-01
Posted Nov 20, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-3932-01 - This release adds the new Apache HTTP Server 2.4.37 packages that are part of the JBoss Core Services offering. This release serves as a replacement for Red Hat JBoss Core Services Pack Apache Server 2.4.29 and includes bug fixes and enhancements. Issues addressed include bypass and denial of service vulnerabilities.

tags | advisory, web, denial of service, vulnerability
systems | linux, redhat
advisories | CVE-2018-0734, CVE-2018-0737, CVE-2018-17189, CVE-2018-17199, CVE-2018-5407, CVE-2019-0196, CVE-2019-0197, CVE-2019-0217, CVE-2019-9511, CVE-2019-9513, CVE-2019-9516, CVE-2019-9517
MD5 | f6d8e510423ffa67b7ec52200f99ca4d
Red Hat Security Advisory 2019-3933-01
Posted Nov 20, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-3933-01 - This release adds the new Apache HTTP Server 2.4.37 packages that are part of the JBoss Core Services offering. This release serves as a replacement for Red Hat JBoss Core Services Pack Apache Server 2.4.29 and includes bug fixes and enhancements. Issues addressed include bypass and denial of service vulnerabilities.

tags | advisory, web, denial of service, vulnerability
systems | linux, redhat
advisories | CVE-2018-0734, CVE-2018-0737, CVE-2018-17189, CVE-2018-17199, CVE-2018-5407, CVE-2019-0196, CVE-2019-0197, CVE-2019-0217, CVE-2019-9511, CVE-2019-9513, CVE-2019-9516, CVE-2019-9517
MD5 | 654559b5adabe8ffc33ae7ff3c3fc6c9
Red Hat Security Advisory 2019-2955-01
Posted Oct 2, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2955-01 - Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service, javascript
systems | linux, redhat
advisories | CVE-2019-9511, CVE-2019-9512, CVE-2019-9513, CVE-2019-9514, CVE-2019-9515, CVE-2019-9516, CVE-2019-9517, CVE-2019-9518
MD5 | 1a514ca362872e9ae66545e776b0d461
Red Hat Security Advisory 2019-2949-01
Posted Oct 1, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2949-01 - The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Issues addressed include a denial of service vulnerability.

tags | advisory, web, denial of service
systems | linux, redhat
advisories | CVE-2019-9511, CVE-2019-9513, CVE-2019-9517
MD5 | bc505b4e45a39a19f419119259f86b4f
Red Hat Security Advisory 2019-2950-01
Posted Oct 1, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2950-01 - This release adds the new Apache HTTP Server 2.4.29 Service Pack 3 packages that are part of the JBoss Core Services offering. This release serves as a replacement for Red Hat JBoss Core Services Apache HTTP Server 2.4.29 SP2, and includes security and bug fixes. Issues addressed include a denial of service vulnerability.

tags | advisory, web, denial of service
systems | linux, redhat
advisories | CVE-2019-9516, CVE-2019-9517
MD5 | 1335c2d4b9621d42b1ad59dc1aca67e6
Red Hat Security Advisory 2019-2946-01
Posted Oct 1, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2946-01 - Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products, and is packaged under Red Hat JBoss Core Services to allow for faster distribution of updates, and for a more consistent update experience. This release of Red Hat JBoss Core Services Apache HTTP Server 2.4.29 Service Pack 3 serves as an update to Red Hat JBoss Core Services Apache HTTP Server 2.4.29, and includes bug fixes for CVEs which are linked in the References section. Issues addressed include a denial of service vulnerability.

tags | advisory, web, denial of service
systems | linux, redhat
advisories | CVE-2019-9516, CVE-2019-9517
MD5 | 2654348a86bd8f200f26984bc6ca53e0
Red Hat Security Advisory 2019-2939-01
Posted Sep 30, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2939-01 - Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service, javascript
systems | linux, redhat
advisories | CVE-2019-9511, CVE-2019-9512, CVE-2019-9513, CVE-2019-9514, CVE-2019-9515, CVE-2019-9516, CVE-2019-9517, CVE-2019-9518
MD5 | 3ea54427e9bdbe60949971c4ea4ff8d0
Red Hat Security Advisory 2019-2925-01
Posted Sep 30, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2925-01 - Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service, javascript
systems | linux, redhat
advisories | CVE-2019-9511, CVE-2019-9512, CVE-2019-9513, CVE-2019-9514, CVE-2019-9515, CVE-2019-9516, CVE-2019-9517, CVE-2019-9518
MD5 | d13cd13816001f3a3097381e8c6b0617
Red Hat Security Advisory 2019-2893-01
Posted Sep 24, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2893-01 - The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Issues addressed include a denial of service vulnerability.

tags | advisory, web, denial of service
systems | linux, redhat
advisories | CVE-2019-9517
MD5 | 23fcbd217cc6523e097c51c327ad8fcf
Ubuntu Security Notice USN-4113-2
Posted Sep 17, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4113-2 - USN-4113-1 fixed vulnerabilities in the Apache HTTP server. Unfortunately, that update introduced a regression when proxying balancer manager connections in some configurations. This update fixes the problem. Various other issues were also addressed.

tags | advisory, web, vulnerability
systems | linux, ubuntu
advisories | CVE-2019-0197, CVE-2019-10081, CVE-2019-10082, CVE-2019-10092, CVE-2019-10097, CVE-2019-10098, CVE-2019-9517
MD5 | f812825caab42845cee8b7c018c9fa03
Gentoo Linux Security Advisory 201909-04
Posted Sep 6, 2019
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201909-4 - Multiple vulnerabilities have been found in Apache, the worst of which could result in a Denial of Service condition. Versions less than 2.4.41 are affected.

tags | advisory, denial of service, vulnerability
systems | linux, gentoo
advisories | CVE-2019-10081, CVE-2019-10082, CVE-2019-10092, CVE-2019-10097, CVE-2019-10098, CVE-2019-9517
MD5 | b7e2ec2f187750b6821de061c6e7ef30
Ubuntu Security Notice USN-4113-1
Posted Aug 30, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4113-1 - Stefan Eissing discovered that the HTTP/2 implementation in Apache did not properly handle upgrade requests from HTTP/1.1 to HTTP/2 in some situations. A remote attacker could use this to cause a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 19.04. Craig Young discovered that a memory overwrite error existed in Apache when performing HTTP/2 very early pushes in some situations. A remote attacker could use this to cause a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 19.04. Various other issues were also addressed.

tags | advisory, remote, web, denial of service
systems | linux, ubuntu
advisories | CVE-2019-0197, CVE-2019-10081, CVE-2019-10082, CVE-2019-10092, CVE-2019-10097, CVE-2019-10098, CVE-2019-9517
MD5 | 599a920f74022391b3784ad5e42c2f5b
Debian Security Advisory 4509-1
Posted Aug 27, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4509-1 - Several vulnerabilities have been found in the Apache HTTPD server.

tags | advisory, vulnerability
systems | linux, debian
advisories | CVE-2019-10081, CVE-2019-10082, CVE-2019-10092, CVE-2019-10097, CVE-2019-10098, CVE-2019-9517
MD5 | c762ad8dac38c57a0a75b5a2de25f227
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