ID

VAR-201908-0261

CVE

CVE-2019-9518

TITLE

HTTP/2 implementations do not robustly handle abnormal traffic and resource exhaustion

DESCRIPTION

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 PUSH_PROMISE. The peer spends time processing each frame disproportionate to attack bandwidth. This can consume excess CPU. Multiple HTTP/2 implementations are vulnerable to a variety of denial-of-service (DoS) attacks. Apple SwiftNIO and Apache Traffic Server Used in HTTP/2 Contains a resource exhaustion vulnerability.Service operation interruption (DoS) There is a possibility of being put into a state. HTTP/2 is the second version of the hypertext transfer protocol, which is mainly used to ensure the communication between the client and the server. A resource management error vulnerability exists in HTTP/2. An attacker could exploit this vulnerability to cause a denial of service. Description: Red Hat Decision Manager is an open source decision management platform that combines business rules management, complex event processing, Decision Model & Notation (DMN) execution, and Business Optimizer for solving planning problems. It automates business decisions and makes that logic available to the entire business. It is recommended to halt the server by stopping the JBoss Application Server process before installing this update; after installing the update, restart the server by starting the JBoss Application Server process. The purpose of this text-only errata is to inform you about the security issues fixed in this release. Installation instructions are available from the Fuse 7.5.0 product documentation page: https://access.redhat.com/documentation/en-us/red_hat_fuse/7.5/ 4. The fixes are too intrusive to backport to the version in the oldstable distribution (stretch). An upgrade to Debian stable (buster) is recommended instead. For the stable distribution (buster), these problems have been fixed in version 8.0.2+ds-1+deb10u1. We recommend that you upgrade your trafficserver packages. For the detailed security status of trafficserver please refer to its security tracker page at: https://security-tracker.debian.org/tracker/trafficserver Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEtuYvPRKsOElcDakFEMKTtsN8TjYFAl12uUMACgkQEMKTtsN8 TjbP/Q//UvaJG0Gts7+yZcOmkiaVinEtOzN445QNHGGQMKPfR4/hCuY6TrO0aWUM msNVTMwiEgLtXBqjNC2mT7f1UzQjZ76wb7wXAayaTsUsidMqsL9ZkVpzGSLrMBur wrhUpJRbDp/29qBdETP5bpjAp/Q7HMN1d9WbJa1ao2UpG1J2zpB8jQP0UjfVuM8W JwDlgj+Oj7M4CuQgN1A4vtK62f5k8X+d4bZZZSNUqkHKJuNFB1STDrDuZ+5aCPGo h0PYB/NX21T3W6AfGHIRwJda4IsSqRI/UnNIQygRs2QRiSzkGInCmb5KjsXKAiqF SnYLqKlxAcQ/8+zsEUqQKziBrZX6QsIiKFDYRV29KoK3AwDm7s5Q4KHzXGtNX5Mp a0GzAccDa1GpTxzSI8u5Jo60Ygf2ETkpwiyWSUivcFnzASyDCAwNLAwPAWpfARhO 2rE+LIi42dGnGfa2plKt7jvQDBj2hBvRHd8nMT8ugoJCTQCNnHC9X5/RNWPqIZmR XVHQSRTR8BCCnTdRuvXJB3oQyRQZORMqrsYoARm50+J/v2wJ/Q8Wo4kwWXpflDoH SAO10qjWU9Ja5giiQJh9ToJKPfx6sAma77XoaBz0HteCs3uCvyJK5cpmmoMcImyh 3po/YTjSdJRYZI9YjLWT1ZDP6TeueBkIqf07uuT9Kk92VWuyfhs=UFIM -----END PGP SIGNATURE----- . -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 APPLE-SA-2019-08-13-5 SwiftNIO HTTP/2 1.5.0 SwiftNIO HTTP/2 1.5.0 is now available and addresses the following: SwiftNIO HTTP/2 Available for: SwiftNIO HTTP/2 1.0.0 through 1.4.0 on macOS Sierra 10.12 and later and Ubuntu 14.04 and later Impact: A HTTP/2 server may consume unbounded amounts of memory when receiving certain traffic patterns and eventually suffer resource exhaustion Description: This issue was addressed with improved buffer size management. CVE-2019-9512: Jonathan Looney of Netflix CVE-2019-9514: Jonathan Looney of Netflix CVE-2019-9515: Jonathan Looney of Netflix CVE-2019-9516: Jonathan Looney of Netflix SwiftNIO HTTP/2 Available for: SwiftNIO HTTP/2 1.0.0 through 1.4.0 on macOS Sierra 10.12 and later and Ubuntu 14.04 and later Impact: A HTTP/2 server may consume excessive CPU resources when receiving certain traffic patterns Description: This issue was addressed with improved input validation. CVE-2019-9518: Piotr Sikora of Google, Envoy Security Team Installation note: SwiftNIO HTTP/2 1.5.0 may be obtained via Swift Package Manager. Information will also be posted to the Apple Security Updates web site: https://support.apple.com/kb/HT201222 and https://github.com/apple/swift-nio-http2/releases/tag/1.5.0. Description: AMQ Broker is a high-performance messaging implementation based on ActiveMQ Artemis. It uses an asynchronous journal for fast message persistence, and supports multiple languages, protocols, and platforms. For further information, refer to the release notes linked to in the References section. Solution: Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on. The References section of this erratum contains a download link (you must log in to download the update). -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: nodejs:10 security update Advisory ID: RHSA-2019:2925-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:2925 Issue date: 2019-09-30 CVE Names: CVE-2019-9511 CVE-2019-9512 CVE-2019-9513 CVE-2019-9514 CVE-2019-9515 CVE-2019-9516 CVE-2019-9517 CVE-2019-9518 ===================================================================== 1. Summary: An update for the nodejs:10 module is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux AppStream (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64 3. Description: Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. The following packages have been upgraded to a later upstream version: nodejs (10.16.3). Security Fix(es): * HTTP/2: large amount of data requests leads to denial of service (CVE-2019-9511) * HTTP/2: flood using PING frames results in unbounded memory growth (CVE-2019-9512) * HTTP/2: flood using PRIORITY frames results in excessive resource consumption (CVE-2019-9513) * HTTP/2: flood using HEADERS frames results in unbounded memory growth (CVE-2019-9514) * HTTP/2: flood using SETTINGS frames results in unbounded memory growth (CVE-2019-9515) * HTTP/2: 0-length headers lead to denial of service (CVE-2019-9516) * HTTP/2: request for large response leads to denial of service (CVE-2019-9517) * HTTP/2: flood using empty frames results in excessive resource consumption (CVE-2019-9518) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Package List: Red Hat Enterprise Linux AppStream (v. 8): Source: nodejs-10.16.3-2.module+el8.0.0+4214+49953fda.src.rpm nodejs-nodemon-1.18.3-1.module+el8+2632+6c5111ed.src.rpm nodejs-packaging-17-3.module+el8+2873+aa7dfd9a.src.rpm aarch64: nodejs-10.16.3-2.module+el8.0.0+4214+49953fda.aarch64.rpm nodejs-debuginfo-10.16.3-2.module+el8.0.0+4214+49953fda.aarch64.rpm nodejs-debugsource-10.16.3-2.module+el8.0.0+4214+49953fda.aarch64.rpm nodejs-devel-10.16.3-2.module+el8.0.0+4214+49953fda.aarch64.rpm npm-6.9.0-1.10.16.3.2.module+el8.0.0+4214+49953fda.aarch64.rpm noarch: nodejs-docs-10.16.3-2.module+el8.0.0+4214+49953fda.noarch.rpm nodejs-nodemon-1.18.3-1.module+el8+2632+6c5111ed.noarch.rpm nodejs-packaging-17-3.module+el8+2873+aa7dfd9a.noarch.rpm ppc64le: nodejs-10.16.3-2.module+el8.0.0+4214+49953fda.ppc64le.rpm nodejs-debuginfo-10.16.3-2.module+el8.0.0+4214+49953fda.ppc64le.rpm nodejs-debugsource-10.16.3-2.module+el8.0.0+4214+49953fda.ppc64le.rpm nodejs-devel-10.16.3-2.module+el8.0.0+4214+49953fda.ppc64le.rpm npm-6.9.0-1.10.16.3.2.module+el8.0.0+4214+49953fda.ppc64le.rpm s390x: nodejs-10.16.3-2.module+el8.0.0+4214+49953fda.s390x.rpm nodejs-debuginfo-10.16.3-2.module+el8.0.0+4214+49953fda.s390x.rpm nodejs-debugsource-10.16.3-2.module+el8.0.0+4214+49953fda.s390x.rpm nodejs-devel-10.16.3-2.module+el8.0.0+4214+49953fda.s390x.rpm npm-6.9.0-1.10.16.3.2.module+el8.0.0+4214+49953fda.s390x.rpm x86_64: nodejs-10.16.3-2.module+el8.0.0+4214+49953fda.x86_64.rpm nodejs-debuginfo-10.16.3-2.module+el8.0.0+4214+49953fda.x86_64.rpm nodejs-debugsource-10.16.3-2.module+el8.0.0+4214+49953fda.x86_64.rpm nodejs-devel-10.16.3-2.module+el8.0.0+4214+49953fda.x86_64.rpm nodejs-devel-debuginfo-10.16.3-2.module+el8.0.0+4214+49953fda.x86_64.rpm npm-6.9.0-1.10.16.3.2.module+el8.0.0+4214+49953fda.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2019-9511 https://access.redhat.com/security/cve/CVE-2019-9512 https://access.redhat.com/security/cve/CVE-2019-9513 https://access.redhat.com/security/cve/CVE-2019-9514 https://access.redhat.com/security/cve/CVE-2019-9515 https://access.redhat.com/security/cve/CVE-2019-9516 https://access.redhat.com/security/cve/CVE-2019-9517 https://access.redhat.com/security/cve/CVE-2019-9518 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2019 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXZGtHtzjgjWX9erEAQiTyRAAor6sJh3gZ6PZ3xUQhSyFif5kUuLb9dOa gsUrFUW9QjnSD4OeWq0eOJ+W1VkY0WKU0p2KCt4f0R9Msi85EKRzjymM4iv8icMu COL40Wcyvpn2WsdzHrrCT0rM7jiry7YShv/KOlao2wUhkbzs5aHc9D8fBhUvkiCj bHQhrGY+63pnIe6LyCUJ9nEEGPCMaFdpzI+9hDvAevh2ooj6h0PISg/MOb5T7N2z d0RNhrmp5wJUJWbb2hrcnUrbu4CQjf5r44a4R1EdrAL8C+y2vgnVO+wb8RprnMrW 350YueLNrCSYgqeysfbcNG1ccP6iZ/YLCOIOwfb9138cDqelUooAdPKmAj6hY97O pRv1cfc4sBCu1MxhnUgRcY3idmD7qaSbY7lNize04z/HMNK5aq3Kgx5bN/q0OA+n FqWVVCckoFYIn6wWUv1CPlAskpjqns2DPoEd1AUeZH9Efg0JBgKGgQh64T6q20Ua Je5DSConOr149WxNARXWbVz7FhnI+wsDTQzWTk7XuXBfhvSHrfl9tqD444cNP1wm WAvONvS+nlxDOqk4Joo+ZOHA9Wjx/lxciQo6S8aYaQHnCBSUbXAvXjKy0VeoUUdz bD5zrdhbGiSxtR0WNKVP0KVb62P14HGGrceFQRIJPSiqkIrNBS7oeCLuOPpB1QSx J/w0T73QFqQ= =4d1d -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

resource management error

CONFIGURATIONS

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Red Hat

SOURCES

LAST UPDATE DATE

2025-12-22T21:19:03.316000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE