ID

VAR-201908-0421

CVE

CVE-2019-9511

TITLE

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

DESCRIPTION

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 to force the server to queue the data in 1-byte chunks. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both. Multiple HTTP/2 implementations are vulnerable to a variety of denial-of-service (DoS) attacks. 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. ========================================================================== Ubuntu Security Notice USN-6754-1 April 25, 2024 nghttp2 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 23.10 - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS (Available with Ubuntu Pro) - Ubuntu 16.04 LTS (Available with Ubuntu Pro) Summary: Several security issues were fixed in nghttp2. Software Description: - nghttp2: HTTP/2 C Library and tools Details: It was discovered that nghttp2 incorrectly handled the HTTP/2 implementation. A remote attacker could possibly use this issue to cause nghttp2 to consume resources, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2019-9511, CVE-2019-9513) It was discovered that nghttp2 incorrectly handled request cancellation. A remote attacker could possibly use this issue to cause nghttp2 to consume resources, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2023-44487) It was discovered that nghttp2 could be made to process an unlimited number of HTTP/2 CONTINUATION frames. A remote attacker could possibly use this issue to cause nghttp2 to consume resources, leading to a denial of service. (CVE-2024-28182) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 23.10: libnghttp2-14 1.55.1-1ubuntu0.2 nghttp2 1.55.1-1ubuntu0.2 nghttp2-client 1.55.1-1ubuntu0.2 nghttp2-proxy 1.55.1-1ubuntu0.2 nghttp2-server 1.55.1-1ubuntu0.2 Ubuntu 22.04 LTS: libnghttp2-14 1.43.0-1ubuntu0.2 nghttp2 1.43.0-1ubuntu0.2 nghttp2-client 1.43.0-1ubuntu0.2 nghttp2-proxy 1.43.0-1ubuntu0.2 nghttp2-server 1.43.0-1ubuntu0.2 Ubuntu 20.04 LTS: libnghttp2-14 1.40.0-1ubuntu0.3 nghttp2 1.40.0-1ubuntu0.3 nghttp2-client 1.40.0-1ubuntu0.3 nghttp2-proxy 1.40.0-1ubuntu0.3 nghttp2-server 1.40.0-1ubuntu0.3 Ubuntu 18.04 LTS (Available with Ubuntu Pro): libnghttp2-14 1.30.0-1ubuntu1+esm2 nghttp2 1.30.0-1ubuntu1+esm2 nghttp2-client 1.30.0-1ubuntu1+esm2 nghttp2-proxy 1.30.0-1ubuntu1+esm2 nghttp2-server 1.30.0-1ubuntu1+esm2 Ubuntu 16.04 LTS (Available with Ubuntu Pro): libnghttp2-14 1.7.1-1ubuntu0.1~esm2 nghttp2 1.7.1-1ubuntu0.1~esm2 nghttp2-client 1.7.1-1ubuntu0.1~esm2 nghttp2-proxy 1.7.1-1ubuntu0.1~esm2 nghttp2-server 1.7.1-1ubuntu0.1~esm2 In general, a standard system update will make all the necessary changes. The following advisory data is extracted from: https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_5856.json Red Hat officially shut down their mailing list notifications October 10, 2023. Due to this, Packet Storm has recreated the below data as a reference point to raise awareness. It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment. Description: Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly application runtime. Solution: Before applying this update, ensure all previously released errata relevant to your system have been applied. JIRA issues fixed (https://issues.jboss.org/): JBEAP-17075 - (7.2.z) Upgrade yasson from 1.0.2.redhat-00001 to 1.0.5 JBEAP-17220 - (7.2.x) HHH-13504 Upgrade ByteBuddy to 1.9.11 JBEAP-17365 - [GSS](7.2.z) Upgrade RESTEasy from 3.6.1.SP6 to 3.6.1.SP7 JBEAP-17476 - [GSS](7.2.z) Upgrade Generic JMS RA 2.0.2.Final JBEAP-17478 - [GSS](7.2.z) Upgrade JBoss Remoting from 5.0.14.SP1 to 5.0.16.Final JBEAP-17483 - [GSS](7.2.z) Upgrade Apache CXF from 3.2.9 to 3.2.10 JBEAP-17495 - (7.2.z) Upgrade PicketLink from 2.5.5.SP12-redhat-00007 to 2.5.5.SP12-redhat-00009 JBEAP-17496 - (7.2.z) Upgrade PicketLink bindings from 2.5.5.SP12-redhat-00007 to 2.5.5.SP12-redhat-00009 JBEAP-17513 - [GSS](7.2.z) Upgrade Hibernate ORM from 5.3.11.SP1 to 5.3.13 JBEAP-17521 - (7.2.z) Upgrade picketbox from 5.0.3.Final-redhat-00004 to 5.0.3.Final-redhat-00005 JBEAP-17523 - [GSS](7.2.z) Upgrade wildfly-core from 6.0.16 to 6.0.17 JBEAP-17547 - [GSS](7.2.z) Upgrade Elytron-Tool from 1.4.3 to 1.4.4.Final JBEAP-17548 - [GSS](7.2.z) Upgrade Elytron from 1.6.4.Final-redhat-00001 to 1.6.5.Final-redhat-00001 JBEAP-17560 - [GSS](7.2.z) Upgrade HAL from 3.0.16 to 3.0.17 JBEAP-17579 - [GSS](7.2.z) Upgrade JBoss MSC from 1.4.8 to 1.4.11 JBEAP-17582 - [GSS](7.2.z) Upgrade JSF based on Mojarra 2.3.5.SP3-redhat-00002 to 2.3.5.SP3-redhat-00003 JBEAP-17605 - Tracker bug for the EAP 7.2.5 release for RHEL-8 JBEAP-17631 - [GSS](7.2.z) Upgrade Undertow from 2.0.25.SP1 to 2.0.26.SP3 JBEAP-17647 - [GSS](7.2.z) Upgrade IronJacamar from 1.4.17.Final to 1.4.18.Final JBEAP-17665 - [GSS](7.2.z) Upgrade XNIO from 3.7.3.Final-redhat-00001 to 3.7.6.Final JBEAP-17722 - [GSS](7.2.z) Upgrade wildfly-http-client from 1.0.15.Final-redhat-00001 to 1.0.17.Final JBEAP-17874 - (7.2.z) Upgrade to wildfly-openssl 1.0.8 JBEAP-17880 - (7.2.z) Upgrade XNIO from 3.7.6.Final-redhat-00001 to 3.7.6.SP1 7. Description: 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. Refer to the Release Notes for information on the most significant bug fixes and enhancements included in this release. After installing the updated packages, the httpd daemon will be restarted automatically. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: rh-nginx110-nginx security update Advisory ID: RHSA-2019:2745-01 Product: Red Hat Software Collections Advisory URL: https://access.redhat.com/errata/RHSA-2019:2745 Issue date: 2019-09-12 CVE Names: CVE-2019-9511 CVE-2019-9513 CVE-2019-9516 ==================================================================== 1. Summary: An update for rh-nginx110-nginx is now available for Red Hat Software Collections. 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 Software Collections for Red Hat Enterprise Linux Server (v. 6) - x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) - x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4) - x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5) - x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) - x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) - x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) - x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) - x86_64 3. Description: nginx is a web and proxy server supporting HTTP and other protocols, with a focus on high concurrency, performance, and low memory usage. Security Fix(es): * HTTP/2: large amount of data request leads to denial of service (CVE-2019-9511) * HTTP/2: flood using PRIORITY frames resulting in excessive resource consumption (CVE-2019-9513) * HTTP/2: 0-length headers leads to denial of service (CVE-2019-9516) 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 The rh-nginx110-nginx service must be restarted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1735741 - CVE-2019-9513 HTTP/2: flood using PRIORITY frames resulting in excessive resource consumption 1741860 - CVE-2019-9511 HTTP/2: large amount of data request leads to denial of service 1741864 - CVE-2019-9516 HTTP/2: 0-length headers leads to denial of service 6. Package List: Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6): Source: rh-nginx110-nginx-1.10.2-9.el6.1.src.rpm x86_64: rh-nginx110-nginx-1.10.2-9.el6.1.x86_64.rpm rh-nginx110-nginx-debuginfo-1.10.2-9.el6.1.x86_64.rpm rh-nginx110-nginx-mod-http-image-filter-1.10.2-9.el6.1.x86_64.rpm rh-nginx110-nginx-mod-http-perl-1.10.2-9.el6.1.x86_64.rpm rh-nginx110-nginx-mod-http-xslt-filter-1.10.2-9.el6.1.x86_64.rpm rh-nginx110-nginx-mod-mail-1.10.2-9.el6.1.x86_64.rpm rh-nginx110-nginx-mod-stream-1.10.2-9.el6.1.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6): Source: rh-nginx110-nginx-1.10.2-9.el6.1.src.rpm x86_64: rh-nginx110-nginx-1.10.2-9.el6.1.x86_64.rpm rh-nginx110-nginx-debuginfo-1.10.2-9.el6.1.x86_64.rpm rh-nginx110-nginx-mod-http-image-filter-1.10.2-9.el6.1.x86_64.rpm rh-nginx110-nginx-mod-http-perl-1.10.2-9.el6.1.x86_64.rpm rh-nginx110-nginx-mod-http-xslt-filter-1.10.2-9.el6.1.x86_64.rpm rh-nginx110-nginx-mod-mail-1.10.2-9.el6.1.x86_64.rpm rh-nginx110-nginx-mod-stream-1.10.2-9.el6.1.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7): Source: rh-nginx110-nginx-1.10.2-9.el7.1.src.rpm x86_64: rh-nginx110-nginx-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-debuginfo-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-http-image-filter-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-http-perl-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-http-xslt-filter-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-mail-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-stream-1.10.2-9.el7.1.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4): Source: rh-nginx110-nginx-1.10.2-9.el7.1.src.rpm x86_64: rh-nginx110-nginx-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-debuginfo-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-http-image-filter-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-http-perl-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-http-xslt-filter-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-mail-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-stream-1.10.2-9.el7.1.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5): Source: rh-nginx110-nginx-1.10.2-9.el7.1.src.rpm x86_64: rh-nginx110-nginx-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-debuginfo-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-http-image-filter-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-http-perl-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-http-xslt-filter-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-mail-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-stream-1.10.2-9.el7.1.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6): Source: rh-nginx110-nginx-1.10.2-9.el7.1.src.rpm x86_64: rh-nginx110-nginx-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-debuginfo-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-http-image-filter-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-http-perl-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-http-xslt-filter-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-mail-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-stream-1.10.2-9.el7.1.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7): Source: rh-nginx110-nginx-1.10.2-9.el7.1.src.rpm x86_64: rh-nginx110-nginx-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-debuginfo-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-http-image-filter-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-http-perl-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-http-xslt-filter-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-mail-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-stream-1.10.2-9.el7.1.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7): Source: rh-nginx110-nginx-1.10.2-9.el7.1.src.rpm x86_64: rh-nginx110-nginx-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-debuginfo-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-http-image-filter-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-http-perl-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-http-xslt-filter-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-mail-1.10.2-9.el7.1.x86_64.rpm rh-nginx110-nginx-mod-stream-1.10.2-9.el7.1.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-2019-9513 https://access.redhat.com/security/cve/CVE-2019-9516 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 iQIVAwUBXXoyktzjgjWX9erEAQhqVxAApUw26k8XmcjEQM1gNlPgcNvj98eqGOxP vsQLEYCjMQuNtZdeZdgSGv1RLdIxK60CByHpOpy4HVa2cN96CLTDl+cRd2l5JyK2 mVCGTg6Iyin0Vp0gRLG8xwUZqiqfwRRmdvFaK2YD8sH3ykBAheg3udRBr11/l8X+ 4kBCmOttfl0ZTNe/VBi8j5l8bpSZm2W9Hw0gzdzFikI8ScPSOzZkmgRXT3LBCt2k rNGGNrrJLOC9jqwsNea6WXIpmTIdbtiAnL6V22adVjdBGkoJBxe79pqdgvJNYC14 ENl1NKX0UEidrYZ/PS6YtCnFNEpsONM43ZtHliEzMxYCnk/pQNAx4iArdf81tKG6 uglPwQlgaEJm+/2Nnlst07cABT9boYOUcGiKpQhzzs9QuABqJN1u2ZgTDmQkq9gU BGuV3ejUHRHlYuMyNNS/L9SLDAHptsCEzpEzr8Vl4T+m1ah9+AUeI+PqgO1n/1Nl Omt/g+f6ErlKMF2Jf8VkuYnLroqptZefYQJ1+mP9PhYYCh7jw3r00xi036SNeR/0 Elhvl6t48tYTZogIaOetCuJGgukluOPlYBJAlj2/pQjWlAWAYvvb5ha0fitXbDJR LF0KoJoT/6yZLD+XAuHkM9j7spA0iND1czI5j1Ay6R6DnsGAubJxdB4L0RRQ2U7X zMtgbVh8BNU=zH69 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . 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. 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). Bug Fix(es): * Fixed repository mirror credentials properly escaped to allow special characters * Fixed repository mirror UI cancel button enabled * Fixed repository mirror UI change next sync date 3. Solution: Please download the release images via: quay.io/redhat/quay:v3.1.1 quay.io/redhat/clair-jwt:v3.1.1 quay.io/redhat/quay-builder:v3.1.1 4. Summary: This is a security update for JBoss EAP Continuous Delivery 18.0. You must restart the JBoss server process for the update to take effect

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

code execution, sql injection

EXTERNAL IDS

REFERENCES

CREDITS

Red Hat

SOURCES

LAST UPDATE DATE

2026-03-29T19:47:49.764000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE