ID

VAR-202103-1554

CVE

CVE-2021-21409

TITLE

Netty  In  HTTP  Request Smuggling Vulnerability

DESCRIPTION

Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty (io.netty:netty-codec-http2) before version 4.1.61.Final there is a vulnerability that enables request smuggling. The content-length header is not correctly validated if the request only uses a single Http2HeaderFrame with the endStream set to to true. This could lead to request smuggling if the request is proxied to a remote peer and translated to HTTP/1.1. This is a followup of GHSA-wm47-8v5p-wjpj/CVE-2021-21295 which did miss to fix this one case. This was fixed as part of 4.1.61.Final. This vulnerability is CVE-2021-21295 It is a vulnerability caused by an incomplete fix.Information may be tampered with. 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 7.10.0 product documentation page: https://access.redhat.com/documentation/en-us/red_hat_fuse/7.10/ 4. Bugs fixed (https://bugzilla.redhat.com/): 1944888 - CVE-2021-21409 netty: Request smuggling via content-length header 2004133 - CVE-2021-37136 netty-codec: Bzip2Decoder doesn't allow setting size restrictions for decompressed data 2004135 - CVE-2021-37137 netty-codec: SnappyFrameDecoder doesn't restrict chunk length and may buffer skippable chunks in an unnecessary way 2030932 - CVE-2021-44228 log4j-core: Remote code execution in Log4j 2.x when logs contain an attacker-controlled string value 5. JIRA issues fixed (https://issues.jboss.org/): LOG-1971 - Applying cluster state is causing elasticsearch to hit an issue and become unusable 6. Description: Red Hat Single Sign-On 7.4 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: Red Hat JBoss Enterprise Application Platform 7.3.8 on RHEL 7 security update Advisory ID: RHSA-2021:2693-01 Product: Red Hat JBoss Enterprise Application Platform Advisory URL: https://access.redhat.com/errata/RHSA-2021:2693 Issue date: 2021-07-13 CVE Names: CVE-2021-3536 CVE-2021-21409 ===================================================================== 1. Summary: A security update is now available for Red Hat JBoss Enterprise Application Platform 7.3 for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. 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 JBoss EAP 7.3 for RHEL 7 Server - noarch 3. Description: Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly application runtime. This release of Red Hat JBoss Enterprise Application Platform 7.3.8 serves as a replacement for Red Hat JBoss Enterprise Application Platform 7.3.7, and includes bug fixes and enhancements. See the Red Hat JBoss Enterprise Application Platform 7.3.8 Release Notes for information about the most significant bug fixes and enhancements included in this release. Security Fix(es): * netty: Request smuggling via content-length header (CVE-2021-21409) * wildfly: XSS via admin console when creating roles in domain mode (CVE-2021-3536) 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: Before applying this update, back up your existing Red Hat JBoss Enterprise Application Platform installation and deployed applications. 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. Bugs fixed (https://bugzilla.redhat.com/): 1944888 - CVE-2021-21409 netty: Request smuggling via content-length header 1948001 - CVE-2021-3536 wildfly: XSS via admin console when creating roles in domain mode 6. JIRA issues fixed (https://issues.jboss.org/): JBEAP-20264 - [GSS](7.3.z) ISPN-12787 - Non Transactional Cache needs to be invalidated after commit on JPQL update/delete operation JBEAP-20503 - [GSS](7.3.z) WFCORE-5185 - Update ProviderDefinition to use optimised service loading API JBEAP-20623 - [GSS](7.3.z) Upgrade Hibernate ORM from 5.3.20.Final-redhat-00001 to 5.3.20.SP1-redhat-00001 JBEAP-21179 - Tracker bug for the EAP 7.3.8 release for RHEL-7 JBEAP-21406 - [GSS](7.3.z) Upgrade Ironjacamar from 1.4.30.Final-redhat-00001 to 1.4.33.Final-redhat-00001 JBEAP-21421 - (7.3.z) Upgrade Infinispan from 9.4.22.Final-redhat-00001 to 9.4.23.Final-redhat-00001 JBEAP-21434 - (7.3.z) Upgrade wildfly-http-client from 1.0.26.Final-redhat-00001 to 1.0.28.Final-redhat-00001 JBEAP-21435 - (7.3.z) Upgrade Elytron from 1.10.12.Final-redhat-00001 to 1.10.13.Final-redhat-00001 JBEAP-21437 - (7.3.z) Upgrade netty from 4.1.60.Final to 4.1.63 JBEAP-21441 - (7.3.z) Upgrade Undertow from 2.0.35.SP1-redhat-00001 to 2.0.38.SP1-redhat-00001 JBEAP-21443 - (7.3.z) Upgrade jberet from 1.3.7.Final-redhat-00001 to 1.3.8.Final-redhat-00001 JBEAP-21444 - (7.3.z) Upgrade wf-core from 10.1.20.Final-redhat-00001 to 10.1.21.Final-redhat-00001 JBEAP-21567 - [GSS](7.3.z) Upgrade HAL from 3.2.14.Final-redhat-00001 to 3.2.15.Final-redhat-00001 JBEAP-21582 - (7.3.z) Upgrade remoting from 5.0.20.SP1-redhat-00001 to 5.0.23.Final-redhat-00001 JBEAP-21739 - (7.3.z) Upgrade elytron-web from 1.6.2.Final-redhat-00001 to 1.6.3.Final-redhat-00001 JBEAP-21977 - [SET](7.3.z) Update product CP branch github template 7. Package List: Red Hat JBoss EAP 7.3 for RHEL 7 Server: Source: eap7-elytron-web-1.6.3-1.Final_redhat_00001.1.el7eap.src.rpm eap7-hal-console-3.2.15-1.Final_redhat_00001.1.el7eap.src.rpm eap7-hibernate-5.3.20-3.SP1_redhat_00001.1.el7eap.src.rpm eap7-infinispan-9.4.23-1.Final_redhat_00001.1.el7eap.src.rpm eap7-ironjacamar-1.4.33-1.Final_redhat_00001.1.el7eap.src.rpm eap7-jberet-1.3.8-1.Final_redhat_00001.1.el7eap.src.rpm eap7-jboss-remoting-5.0.23-1.Final_redhat_00001.1.el7eap.src.rpm eap7-jboss-server-migration-1.7.2-7.Final_redhat_00008.1.el7eap.src.rpm eap7-netty-4.1.63-1.Final_redhat_00001.1.el7eap.src.rpm eap7-undertow-2.0.38-1.SP1_redhat_00001.1.el7eap.src.rpm eap7-wildfly-7.3.8-1.GA_redhat_00001.1.el7eap.src.rpm eap7-wildfly-elytron-1.10.13-1.Final_redhat_00001.1.el7eap.src.rpm eap7-wildfly-http-client-1.0.28-1.Final_redhat_00001.1.el7eap.src.rpm noarch: eap7-hal-console-3.2.15-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-hibernate-5.3.20-3.SP1_redhat_00001.1.el7eap.noarch.rpm eap7-hibernate-core-5.3.20-3.SP1_redhat_00001.1.el7eap.noarch.rpm eap7-hibernate-entitymanager-5.3.20-3.SP1_redhat_00001.1.el7eap.noarch.rpm eap7-hibernate-envers-5.3.20-3.SP1_redhat_00001.1.el7eap.noarch.rpm eap7-hibernate-java8-5.3.20-3.SP1_redhat_00001.1.el7eap.noarch.rpm eap7-infinispan-9.4.23-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-infinispan-cachestore-jdbc-9.4.23-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-infinispan-cachestore-remote-9.4.23-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-infinispan-client-hotrod-9.4.23-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-infinispan-commons-9.4.23-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-infinispan-core-9.4.23-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-infinispan-hibernate-cache-commons-9.4.23-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-infinispan-hibernate-cache-spi-9.4.23-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-infinispan-hibernate-cache-v53-9.4.23-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-ironjacamar-1.4.33-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-ironjacamar-common-api-1.4.33-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-ironjacamar-common-impl-1.4.33-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-ironjacamar-common-spi-1.4.33-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-ironjacamar-core-api-1.4.33-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-ironjacamar-core-impl-1.4.33-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-ironjacamar-deployers-common-1.4.33-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-ironjacamar-jdbc-1.4.33-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-ironjacamar-validator-1.4.33-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-jberet-1.3.8-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-jberet-core-1.3.8-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-jboss-remoting-5.0.23-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-jboss-server-migration-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-cli-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-core-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-eap6.4-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-eap6.4-to-eap7.3-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-eap7.0-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-eap7.1-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-eap7.2-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-eap7.2-to-eap7.3-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-eap7.3-server-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-wildfly10.0-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-wildfly10.1-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-wildfly11.0-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-wildfly12.0-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-wildfly13.0-server-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-wildfly14.0-server-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-wildfly15.0-server-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-wildfly16.0-server-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-wildfly17.0-server-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-wildfly18.0-server-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-wildfly8.2-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-jboss-server-migration-wildfly9.0-1.7.2-7.Final_redhat_00008.1.el7eap.noarch.rpm eap7-netty-4.1.63-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-netty-all-4.1.63-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-undertow-2.0.38-1.SP1_redhat_00001.1.el7eap.noarch.rpm eap7-undertow-server-1.6.3-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-wildfly-7.3.8-1.GA_redhat_00001.1.el7eap.noarch.rpm eap7-wildfly-elytron-1.10.13-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-wildfly-elytron-tool-1.10.13-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-wildfly-http-client-common-1.0.28-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-wildfly-http-ejb-client-1.0.28-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-wildfly-http-naming-client-1.0.28-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-wildfly-http-transaction-client-1.0.28-1.Final_redhat_00001.1.el7eap.noarch.rpm eap7-wildfly-java-jdk11-7.3.8-1.GA_redhat_00001.1.el7eap.noarch.rpm eap7-wildfly-java-jdk8-7.3.8-1.GA_redhat_00001.1.el7eap.noarch.rpm eap7-wildfly-javadocs-7.3.8-1.GA_redhat_00001.1.el7eap.noarch.rpm eap7-wildfly-modules-7.3.8-1.GA_redhat_00001.1.el7eap.noarch.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/ 8. References: https://access.redhat.com/security/cve/CVE-2021-3536 https://access.redhat.com/security/cve/CVE-2021-21409 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.3/ https://access.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.3/html-single/installation_guide/ 9. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYO2On9zjgjWX9erEAQhKOQ//afEATx0pRuRfFiXicDmjCwDz8CcXrDwf 8fgmVfpCRsDORqZJKVcQGKlN2aBagbnLfkLK2U5zbqYTT4iJBQgQmUuVWF7n6Trx TGyiBrIlCiE6Horext2mmtnb96TRR0b43BGU2BBtEPcq/puwYbvJYiwvPfCx3+nF oXm82ACKfqhP+2ErJC23/qBhN4WtL/bF5Md20nhHC2gXZka5YV2VM7/j+wzltnaH t5gtESPQ074POF7jUvinbdrSDzbz+Q5FFaOVEZrpdpxVFTX/zpJxaPQnflkrArk0 P5hqKiUg4lhA/98pFdCOL4yFUAZ+dIpBaN3sMhd8Um1ovnegMb0sV4S0XPaJxUWg BuMEO/f3H9T/YNX3RXNjA+iNY7W6CkGpfFjoMaDrd4ZKyR2HStMyqXBHylBNdyWS IeMbcJnYAG+L1agV/dkbaqJFxa4dHIefKTRnxxM6fpHPp4JbDx62p4/qGLU39JwR WQwwo6bQWefkytn/+tBAvjZHs59dvGGa9BSMukPgOs3pYFbLHNnRPBczTgRNP71h do3Kyi0BMEuG1P+GkJpAqLJBS4pxZNmZeRvEMzTEepn+iL9pplfq2lffesH4JZ4Y dG+0Ne+d1g3nM4QWdu/s64hfBt9cuYBXsnnpuG/Yt5yLYSrqfTcLpOQGfD8V6qwx otJ1DTehKNw= =tObI -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce . Description: Red Hat Data Grid is a distributed, in-memory data store. Solution: Refer to the Data Grid 8.2 Upgrade Guide for instructions on upgrading to this version. Bugs fixed (https://bugzilla.redhat.com/): 1846293 - CVE-2020-10771 Infinispan: Actions with effects should not be permitted via GET requests using REST API 1908832 - CVE-2020-26258 XStream: Server-Side Forgery Request vulnerability can be activated when unmarshalling 1908837 - CVE-2020-26259 XStream: arbitrary file deletion on the local host when unmarshalling 1927028 - CVE-2021-21290 netty: Information disclosure via the local system temporary directory 1937364 - CVE-2021-21295 netty: possible request smuggling in HTTP/2 due missing validation 1942539 - CVE-2021-21341 XStream: allow a remote attacker to cause DoS only by manipulating the processed input stream 1942545 - CVE-2021-21342 XStream: SSRF via crafted input stream 1942550 - CVE-2021-21343 XStream: arbitrary file deletion on the local host via crafted input stream 1942554 - CVE-2021-21344 XStream: Unsafe deserizaliation of javax.sql.rowset.BaseRowSet 1942558 - CVE-2021-21345 XStream: Unsafe deserizaliation of com.sun.corba.se.impl.activation.ServerTableEntry 1942578 - CVE-2021-21346 XStream: Unsafe deserizaliation of sun.swing.SwingLazyValue 1942629 - CVE-2021-21347 XStream: Unsafe deserizaliation of com.sun.tools.javac.processing.JavacProcessingEnvironment NameProcessIterator 1942633 - CVE-2021-21348 XStream: ReDoS vulnerability 1942635 - CVE-2021-21349 XStream: SSRF can be activated unmarshalling with XStream to access data streams from an arbitrary URL referencing a resource in an intranet or the local host 1942637 - CVE-2021-21350 XStream: Unsafe deserizaliation of com.sun.org.apache.bcel.internal.util.ClassLoader 1942642 - CVE-2021-21351 XStream: allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream 1944888 - CVE-2021-21409 netty: Request smuggling via content-length header 1955113 - CVE-2021-31917 Infinispan: Authentication bypass on REST endpoints when using DIGEST authentication mechanism 5. The References section of this erratum contains a download link (you must log in to download the update). Bugs fixed (https://bugzilla.redhat.com/): 1937364 - CVE-2021-21295 netty: possible request smuggling in HTTP/2 due missing validation 1937440 - CVE-2020-13936 velocity: arbitrary code execution when attacker is able to modify templates 1944888 - CVE-2021-21409 netty: Request smuggling via content-length header 1948001 - CVE-2021-3536 wildfly: XSS via admin console when creating roles in domain mode 1948752 - CVE-2021-29425 apache-commons-io: Limited path traversal in Apache Commons IO 2.2 to 2.6 1965497 - CVE-2021-28170 jakarta-el: ELParserTokenManager enables invalid EL expressions to be evaluate 1970930 - CVE-2021-3597 undertow: HTTP2SourceChannel fails to write final frame under some circumstances may lead to DoS 1976052 - CVE-2021-3644 wildfly-core: Invalid Sensitivity Classification of Vault Expression 1981407 - CVE-2021-3642 wildfly-elytron: possible timing attack in ScramServer 1991299 - CVE-2021-3690 undertow: buffer leak on incoming websocket PONG message may lead to DoS 5

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

environmental issue

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Red Hat

SOURCES

LAST UPDATE DATE

2026-08-28T22:16:49.428000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE