ID

VAR-202112-1782

CVE

CVE-2021-45105

TITLE

Apache Log4j StrSubstitutor Uncontrolled Recursion Denial-of-Service Vulnerability

DESCRIPTION

Apache Log4j2 versions 2.0-alpha1 through 2.16.0 (excluding 2.12.3 and 2.3.1) did not protect from uncontrolled recursion from self-referential lookups. This allows an attacker with control over Thread Context Map data to cause a denial of service when a crafted string is interpreted. This issue was fixed in Log4j 2.17.0, 2.12.3, and 2.3.1. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Apache Log4j. Authentication is not required to exploit this vulnerability.The specific flaw exists within the StrSubstitutor class. The issue results from the lack of proper validation of user-supplied data, which can result in a resource exhaustion condition. An attacker can leverage this vulnerability to create a denial-of-service condition on the process. Log4j is an open source project of Apache. By using Log4j, the destination of log information transmission can be controlled to be console, file, GUI component, even socket server, NT event recorder, etc. Apache Log4j2 has a denial of service vulnerability. This vulnerability is due to the fact that Apache Log4j2 is configured with a non-default Pattern Layout scenario with Context Lookup (for example: $${ctx:loginId}), attackers can use this vulnerability to construct malicious data and execute denial of service without authorization attack, eventually causing the server to denial of service. 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 product documentation pages: Fuse 7.8: https://access.redhat.com/documentation/en-us/red_hat_fuse/7.8/html/installing_on_apache_karaf/apply-hotfix-patch https://access.redhat.com/documentation/en-us/red_hat_fuse/7.8/html/deploying_into_spring_boot/patch-red-hat-fuse-applications Fuse 7.9: https://access.redhat.com/documentation/en-us/red_hat_fuse/7.9/html/installing_on_apache_karaf/apply-hotfix-patch https://access.redhat.com/documentation/en-us/red_hat_fuse/7.9/html/deploying_into_spring_boot/patch-red-hat-fuse-applications Fuse 7.10: https://access.redhat.com/documentation/en-us/red_hat_fuse/7.10/html/installing_on_apache_karaf/apply-hotfix-patch https://access.redhat.com/documentation/en-us/red_hat_fuse/7.10/html/deploying_into_spring_boot/patch-red-hat-fuse-applications 4. The References section of this erratum contains a download link for the update. You must be logged in to download the update. Description: Red Hat AMQ Streams, based on the Apache Kafka project, offers a distributed backbone that allows microservices and other applications to share data with extremely high throughput and extremely low latency. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Low: Red Hat JBoss Enterprise Application Platform 7.4.4 security update Advisory ID: RHSA-2022:1297-01 Product: Red Hat JBoss Enterprise Application Platform Advisory URL: https://access.redhat.com/errata/RHSA-2022:1297 Issue date: 2022-04-11 CVE Names: CVE-2021-4104 CVE-2021-44832 CVE-2021-45046 CVE-2021-45105 CVE-2022-23302 CVE-2022-23305 CVE-2022-23307 ===================================================================== 1. Summary: A security update is now available for Red Hat JBoss Enterprise Application Platform 7.4 for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Low. 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 7.4 for RHEL 8 - noarch, x86_64 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 7.4.4 serves as a replacement for Red Hat JBoss Enterprise Application Platform 7.4.3 and includes bug fixes and enhancements. See the Red Hat JBoss Enterprise Application Platform 7.4.4 Release Notes for information about the most significant bug fixes and enhancements included in this release. Security Fix(es): * log4j: SQL injection in Log4j 1.x when application is configured to use JDBCAppender (CVE-2022-23305) * log4j: Unsafe deserialization flaw in Chainsaw log viewer (CVE-2022-23307) * log4j: Remote code execution in Log4j 1.x when application is configured to use JMSAppender (CVE-2021-4104) * log4j-core: remote code execution via JDBC Appender (CVE-2021-44832) * log4j-core: DoS in log4j 2.x with thread context message pattern and context lookup pattern (incomplete fix for CVE-2021-44228) (CVE-2021-45046) * log4j-core: DoS in log4j 2.x with Thread Context Map (MDC) input data contains a recursive lookup and context lookup pattern (CVE-2021-45105) * log4j: Remote code execution in Log4j 1.x when application is configured to use JMSSink (CVE-2022-23302) 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/): 2031667 - CVE-2021-4104 log4j: Remote code execution in Log4j 1.x when application is configured to use JMSAppender 2032580 - CVE-2021-45046 log4j-core: DoS in log4j 2.x with thread context message pattern and context lookup pattern (incomplete fix for CVE-2021-44228) 2034067 - CVE-2021-45105 log4j-core: DoS in log4j 2.x with Thread Context Map (MDC) input data contains a recursive lookup and context lookup pattern 2035951 - CVE-2021-44832 log4j-core: remote code execution via JDBC Appender 2041949 - CVE-2022-23302 log4j: Remote code execution in Log4j 1.x when application is configured to use JMSSink 2041959 - CVE-2022-23305 log4j: SQL injection in Log4j 1.x when application is configured to use JDBCAppender 2041967 - CVE-2022-23307 log4j: Unsafe deserialization flaw in Chainsaw log viewer 6. JIRA issues fixed (https://issues.jboss.org/): JBEAP-22105 - (7.4.z) Upgrade from com.io7m.xom:xom 1.2.10 to xom:xom 1.3.7 JBEAP-22385 - (7.4.z) Upgrade ASM from 7.1 to 9.1 JBEAP-22731 - (7.4.z) Upgrade Artemis from 2.16.0.redhat-00032 to 2.16.0.redhat-00034 JBEAP-22738 - (7.4.z) Upgrade jbossws-cxf from 5.4.2.Final to 5.4.4.Final(Fix UsernameTokenElytronTestCase on SE 17) JBEAP-22819 - [GSS] (7.4.z) HAL-1762 - Aliases are removed from the credential store when passwords are updated from the admin console JBEAP-22839 - [GSS](7.4.z) Upgrade yasson from 1.0.9.redhat-00001 to 1.0.10.redhat-00001 JBEAP-22864 - (7.4.z) Upgrade HAL from 3.3.8.Final-redhat-00001 to 3.3.9.Final-redhat-00001 JBEAP-22900 - Tracker bug for the EAP 7.4.4 release for RHEL-8 JBEAP-22904 - (7.4.z) Upgrade Hibernate ORM from 5.3.24.Final-redhat-00001 to 5.3.25.Final-redhat-00002 JBEAP-22911 - (7.4.z) Upgrade OpenSSL from 2.1.3.Final-redhat-00001 to 2.2.0.Final-redhat-00001 JBEAP-22912 - (7.4.z) Upgrade OpenSSL Natives from 2.1.0.SP01-redhat-00001 to 2.2.0.Final-redhat-00001 JBEAP-22913 - (7.4.z) Upgrade WildFly Core from 15.0.6.Final-redhat-00003 to 15.0.7.Final-redhat-00001 JBEAP-22935 - (7.4.z) Upgrade jboss-vfs from 3.2.15.Final-redhat-00001 to 3.2.16.Final-redhat-00001 JBEAP-22945 - (7.4.z) Upgrade org.apache.logging.log4j from 2.14.0.redhat-00002 to 2.17.1.redhat-00001 JBEAP-22973 - (7.4.z) Upgrade Elytron from 1.15.9.Final-redhat-00001 to 1.15.11.Final-redhat-00002 JBEAP-23038 - (7.4.z) Upgrade galleon-plugins from 5.1.4.Final to 5.2.6.Final JBEAP-23040 - (7.4.z) Upgrade galleon-plugins in wildfly-core-eap from 5.1.4.Final to 5.2.6.Final JBEAP-23045 - (7.4.z) Upgrade Undertow from 2.2.13.SP2-redhat-00001 to 2.2.16.Final-redhat-0001 JBEAP-23101 - (7.4.z) Upgrade Infinispan from 11.0.12.Final to 11.0.15.Final JBEAP-23105 - (7.4.z) Upgrade Narayana from 5.11.3.Final-redhat-00001 to 5.11.4.Final-redhat-00001 JBEAP-23143 - (7.4.z) Upgrade from org.eclipse.jdt.core.compiler:ecj:4.6.1 to org.eclipse.jdt:ecj:3.26 JBEAP-23177 - (7.4.z) Upgrade XNIO from 3.8.5.SP1-redhat-00001 to 3.8.6.Final-redhat-00001 JBEAP-23323 - [GSS](7.4.z) WFLY-16112 - Batch JobOperatorService should look for only active job names to stop during suspend JBEAP-23373 - (7.4.z) Upgrade OpenSSL from 2.2.0.Final-redhat-00001 to 2.2.0.Final-redhat-00002 JBEAP-23374 - (7.4.z) Upgrade WildFly Core from 15.0.7.Final-redhat-00001 to 15.0.8.Final-redhat-00001 JBEAP-23375 - (7.4.z) Upgrade OpenSSL Natives from 2.2.0.Final-redhat-00001 to 2.2.0.Final-redhat-00002 7. Package List: Red Hat JBoss EAP 7.4 for RHEL 8: Source: eap7-activemq-artemis-2.16.0-7.redhat_00034.1.el8eap.src.rpm eap7-ecj-3.26.0-1.redhat_00002.1.el8eap.src.rpm eap7-hal-console-3.3.9-1.Final_redhat_00001.1.el8eap.src.rpm eap7-hibernate-5.3.25-1.Final_redhat_00002.1.el8eap.src.rpm eap7-infinispan-11.0.15-1.Final_redhat_00001.1.el8eap.src.rpm eap7-jboss-server-migration-1.10.0-15.Final_redhat_00014.1.el8eap.src.rpm eap7-jboss-vfs-3.2.16-1.Final_redhat_00001.1.el8eap.src.rpm eap7-jboss-xnio-base-3.8.6-1.Final_redhat_00001.1.el8eap.src.rpm eap7-jbossws-cxf-5.4.4-1.Final_redhat_00001.1.el8eap.src.rpm eap7-log4j-2.17.1-1.redhat_00001.1.el8eap.src.rpm eap7-narayana-5.11.4-1.Final_redhat_00001.1.el8eap.src.rpm eap7-objectweb-asm-9.1.0-1.redhat_00002.1.el8eap.src.rpm eap7-undertow-2.2.16-1.Final_redhat_00001.1.el8eap.src.rpm eap7-wildfly-7.4.4-3.GA_redhat_00011.1.el8eap.src.rpm eap7-wildfly-elytron-1.15.11-1.Final_redhat_00002.1.el8eap.src.rpm eap7-wildfly-openssl-2.2.0-3.Final_redhat_00002.1.el8eap.src.rpm eap7-wildfly-openssl-el8-x86_64-2.2.0-2.Final_redhat_00002.1.el8eap.src.rpm eap7-xom-1.3.7-1.redhat_00001.1.el8eap.src.rpm eap7-yasson-1.0.10-1.redhat_00001.1.el8eap.src.rpm noarch: eap7-activemq-artemis-2.16.0-7.redhat_00034.1.el8eap.noarch.rpm eap7-activemq-artemis-cli-2.16.0-7.redhat_00034.1.el8eap.noarch.rpm eap7-activemq-artemis-commons-2.16.0-7.redhat_00034.1.el8eap.noarch.rpm eap7-activemq-artemis-core-client-2.16.0-7.redhat_00034.1.el8eap.noarch.rpm eap7-activemq-artemis-dto-2.16.0-7.redhat_00034.1.el8eap.noarch.rpm eap7-activemq-artemis-hornetq-protocol-2.16.0-7.redhat_00034.1.el8eap.noarch.rpm eap7-activemq-artemis-hqclient-protocol-2.16.0-7.redhat_00034.1.el8eap.noarch.rpm eap7-activemq-artemis-jdbc-store-2.16.0-7.redhat_00034.1.el8eap.noarch.rpm eap7-activemq-artemis-jms-client-2.16.0-7.redhat_00034.1.el8eap.noarch.rpm eap7-activemq-artemis-jms-server-2.16.0-7.redhat_00034.1.el8eap.noarch.rpm eap7-activemq-artemis-journal-2.16.0-7.redhat_00034.1.el8eap.noarch.rpm eap7-activemq-artemis-ra-2.16.0-7.redhat_00034.1.el8eap.noarch.rpm eap7-activemq-artemis-selector-2.16.0-7.redhat_00034.1.el8eap.noarch.rpm eap7-activemq-artemis-server-2.16.0-7.redhat_00034.1.el8eap.noarch.rpm eap7-activemq-artemis-service-extensions-2.16.0-7.redhat_00034.1.el8eap.noarch.rpm eap7-activemq-artemis-tools-2.16.0-7.redhat_00034.1.el8eap.noarch.rpm eap7-ecj-3.26.0-1.redhat_00002.1.el8eap.noarch.rpm eap7-hal-console-3.3.9-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-hibernate-5.3.25-1.Final_redhat_00002.1.el8eap.noarch.rpm eap7-hibernate-core-5.3.25-1.Final_redhat_00002.1.el8eap.noarch.rpm eap7-hibernate-entitymanager-5.3.25-1.Final_redhat_00002.1.el8eap.noarch.rpm eap7-hibernate-envers-5.3.25-1.Final_redhat_00002.1.el8eap.noarch.rpm eap7-hibernate-java8-5.3.25-1.Final_redhat_00002.1.el8eap.noarch.rpm eap7-infinispan-11.0.15-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-infinispan-cachestore-jdbc-11.0.15-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-infinispan-cachestore-remote-11.0.15-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-infinispan-client-hotrod-11.0.15-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-infinispan-commons-11.0.15-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-infinispan-component-annotations-11.0.15-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-infinispan-core-11.0.15-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-infinispan-hibernate-cache-commons-11.0.15-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-infinispan-hibernate-cache-spi-11.0.15-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-infinispan-hibernate-cache-v53-11.0.15-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-jboss-server-migration-1.10.0-15.Final_redhat_00014.1.el8eap.noarch.rpm eap7-jboss-server-migration-cli-1.10.0-15.Final_redhat_00014.1.el8eap.noarch.rpm eap7-jboss-server-migration-core-1.10.0-15.Final_redhat_00014.1.el8eap.noarch.rpm eap7-jboss-vfs-3.2.16-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-jboss-xnio-base-3.8.6-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-jbossws-cxf-5.4.4-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-log4j-2.17.1-1.redhat_00001.1.el8eap.noarch.rpm eap7-narayana-5.11.4-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-narayana-compensations-5.11.4-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-narayana-jbosstxbridge-5.11.4-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-narayana-jbossxts-5.11.4-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-narayana-jts-idlj-5.11.4-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-narayana-jts-integration-5.11.4-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-narayana-restat-api-5.11.4-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-narayana-restat-bridge-5.11.4-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-narayana-restat-integration-5.11.4-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-narayana-restat-util-5.11.4-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-narayana-txframework-5.11.4-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-objectweb-asm-9.1.0-1.redhat_00002.1.el8eap.noarch.rpm eap7-undertow-2.2.16-1.Final_redhat_00001.1.el8eap.noarch.rpm eap7-wildfly-7.4.4-3.GA_redhat_00011.1.el8eap.noarch.rpm eap7-wildfly-elytron-1.15.11-1.Final_redhat_00002.1.el8eap.noarch.rpm eap7-wildfly-elytron-tool-1.15.11-1.Final_redhat_00002.1.el8eap.noarch.rpm eap7-wildfly-javadocs-7.4.4-3.GA_redhat_00011.1.el8eap.noarch.rpm eap7-wildfly-modules-7.4.4-3.GA_redhat_00011.1.el8eap.noarch.rpm eap7-wildfly-openssl-2.2.0-3.Final_redhat_00002.1.el8eap.noarch.rpm eap7-wildfly-openssl-java-2.2.0-3.Final_redhat_00002.1.el8eap.noarch.rpm eap7-xom-1.3.7-1.redhat_00001.1.el8eap.noarch.rpm eap7-yasson-1.0.10-1.redhat_00001.1.el8eap.noarch.rpm x86_64: eap7-wildfly-openssl-el8-x86_64-2.2.0-2.Final_redhat_00002.1.el8eap.x86_64.rpm eap7-wildfly-openssl-el8-x86_64-debuginfo-2.2.0-2.Final_redhat_00002.1.el8eap.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/ 8. References: https://access.redhat.com/security/cve/CVE-2021-4104 https://access.redhat.com/security/cve/CVE-2021-44832 https://access.redhat.com/security/cve/CVE-2021-45046 https://access.redhat.com/security/cve/CVE-2021-45105 https://access.redhat.com/security/cve/CVE-2022-23302 https://access.redhat.com/security/cve/CVE-2022-23305 https://access.redhat.com/security/cve/CVE-2022-23307 https://access.redhat.com/security/updates/classification/#low https://access.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.4/ https://access.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.4/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 2022 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYlRUqtzjgjWX9erEAQhXfxAApQ6HkBUo8Tg+GWEosSpAx0AEsVPMojWK HU3uJRF8jp0KXqchc+KVlalBJAWHPBUDr4xBpsISqwr7T/9iYonKlo4ijA/68b2K khbFyt6o6i2dXrYygT5fcMtukSjN2T/hfCc2ZE2yiHTO3Ou4AALyZ2xCyYtfSpuZ rZLVvgCWrnak2msgkoNl0/sZxnjw6b+ZJczKkq3QqPVWOYlV/Qdl5NGy16i0rbEo P1rWXJrOUlEBctJEs756cqeIJesYKHZqqPx/kHaNyzdxDh99hKGZx7oturscAN6e sPfSSdyd5jsOcWD7UlHV9ukoPQxf1ouVBa0qkpL0wCoR3GFF6Pls1bMEFzUoz3/R IwagVxsr38duK3isv34l6IQ+RP0oSWN0rgPUu69tAlEV+YwLgA5JUOpz1i7FTmXt l3i5+wMlo9Xc/Hy+j7unW8Do7s/i0YuFVTuM6H9KEITuFjgFA2tB9CpzoAFzWLk0 U8zCL80Rwy1wiMydSrLjtg3YUPB6ibh2NJ02O7R+bNhJ8bN4yuDuWkDqy4VdPXGp zhed3dZmYAXD9/x+mnfghcbJZwigzGT9Qv78zYafB3f8K7cEVEDJK3aZMOkkh9ca dcaLs5WRv8ZTytFPv+KGKRJ/cc/UHAvh8zumMZdVMp1oty/k/OYWhgaEJMWGQDCe UnHI/WwB37w= =eCh2 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce . Description: Red Hat Single Sign-On 7.5 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. ========================================================================= Ubuntu Security Notice USN-5222-1 January 11, 2022 apache-log4j2 vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 21.10 - Ubuntu 21.04 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: Several security issues were fixed in Apache Log4j 2. This issue only affected Ubuntu 18.04 LTS. (CVE-2021-45105) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 21.10: liblog4j2-java 2.17.1-0.21.10.1 Ubuntu 21.04: liblog4j2-java 2.17.1-0.21.04.1 Ubuntu 20.04 LTS: liblog4j2-java 2.17.1-0.20.04.1 Ubuntu 18.04 LTS: liblog4j2-java 2.12.4-0ubuntu0.1 In general, a standard system update will make all the necessary changes. Solution: For OpenShift Container Platform 4.6 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.6/release_notes/ocp-4-6-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.6/updating/updating-cluster-cli.html 4

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

other

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Guy Lederfein of Trend Micro Security Research

SOURCES

LAST UPDATE DATE

2026-06-19T20:50:35.870000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE