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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2014.0936 Important: tomcat security update 11 June 2014 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: tomcat Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 7 Red Hat Enterprise Linux WS/Desktop 7 Impact/Access: Denial of Service -- Remote/Unauthenticated Cross-site Scripting -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2014-0186 CVE-2013-4322 CVE-2013-4286 CVE-2012-3544 Reference: ASB-2014.0005 ESB-2014.0879 ESB-2014.0814 ESB-2013.0995 ESB-2013.0924 ESB-2013.0667 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2014-0686.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: tomcat security update Advisory ID: RHSA-2014:0686-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0686.html Issue date: 2014-06-10 CVE Names: CVE-2013-4286 CVE-2013-4322 CVE-2014-0186 ===================================================================== 1. Summary: Updated tomcat packages that fix three security issues are now available for Red Hat Enterprise Linux 7. The Red Hat Security Response Team has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Client (v. 7) - noarch Red Hat Enterprise Linux Client Optional (v. 7) - noarch Red Hat Enterprise Linux ComputeNode (v. 7) - noarch Red Hat Enterprise Linux ComputeNode Optional (v. 7) - noarch Red Hat Enterprise Linux Server (v. 7) - noarch Red Hat Enterprise Linux Server Optional (v. 7) - noarch Red Hat Enterprise Linux Workstation (v. 7) - noarch Red Hat Enterprise Linux Workstation Optional (v. 7) - noarch 3. Description: Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages (JSP) technologies. It was found that a fix for a previous security flaw introduced a regression that could cause a denial of service in Tomcat 7. A remote attacker could use this flaw to consume an excessive amount of CPU on the Tomcat server by sending a specially crafted request to that server. (CVE-2014-0186) It was found that when Tomcat 7 processed a series of HTTP requests in which at least one request contained either multiple content-length headers, or one content-length header with a chunked transfer-encoding header, Tomcat would incorrectly handle the request. A remote attacker could use this flaw to poison a web cache, perform cross-site scripting (XSS) attacks, or obtain sensitive information from other requests. (CVE-2013-4286) It was discovered that the fix for CVE-2012-3544 did not properly resolve a denial of service flaw in the way Tomcat 7 processed chunk extensions and trailing headers in chunked requests. A remote attacker could use this flaw to send an excessively long request that, when processed by Tomcat, could consume network bandwidth, CPU, and memory on the Tomcat server. Note that chunked transfer encoding is enabled by default. (CVE-2013-4322) All Tomcat 7 users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. Tomcat must be restarted for this update to take effect. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/site/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1069905 - CVE-2013-4322 tomcat: incomplete fix for CVE-2012-3544 1069921 - CVE-2013-4286 tomcat: multiple content-length header poisoning flaws 1089884 - CVE-2014-0186 tomcat7: RHEL-7 regression causing DoS 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: tomcat-7.0.42-5.el7_0.src.rpm noarch: tomcat-servlet-3.0-api-7.0.42-5.el7_0.noarch.rpm Red Hat Enterprise Linux Client Optional (v. 7): noarch: tomcat-7.0.42-5.el7_0.noarch.rpm tomcat-admin-webapps-7.0.42-5.el7_0.noarch.rpm tomcat-docs-webapp-7.0.42-5.el7_0.noarch.rpm tomcat-el-2.2-api-7.0.42-5.el7_0.noarch.rpm tomcat-javadoc-7.0.42-5.el7_0.noarch.rpm tomcat-jsp-2.2-api-7.0.42-5.el7_0.noarch.rpm tomcat-jsvc-7.0.42-5.el7_0.noarch.rpm tomcat-lib-7.0.42-5.el7_0.noarch.rpm tomcat-webapps-7.0.42-5.el7_0.noarch.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: tomcat-7.0.42-5.el7_0.src.rpm noarch: tomcat-servlet-3.0-api-7.0.42-5.el7_0.noarch.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): noarch: tomcat-7.0.42-5.el7_0.noarch.rpm tomcat-admin-webapps-7.0.42-5.el7_0.noarch.rpm tomcat-docs-webapp-7.0.42-5.el7_0.noarch.rpm tomcat-el-2.2-api-7.0.42-5.el7_0.noarch.rpm tomcat-javadoc-7.0.42-5.el7_0.noarch.rpm tomcat-jsp-2.2-api-7.0.42-5.el7_0.noarch.rpm tomcat-jsvc-7.0.42-5.el7_0.noarch.rpm tomcat-lib-7.0.42-5.el7_0.noarch.rpm tomcat-webapps-7.0.42-5.el7_0.noarch.rpm Red Hat Enterprise Linux Server (v. 7): Source: tomcat-7.0.42-5.el7_0.src.rpm noarch: tomcat-7.0.42-5.el7_0.noarch.rpm tomcat-admin-webapps-7.0.42-5.el7_0.noarch.rpm tomcat-el-2.2-api-7.0.42-5.el7_0.noarch.rpm tomcat-jsp-2.2-api-7.0.42-5.el7_0.noarch.rpm tomcat-lib-7.0.42-5.el7_0.noarch.rpm tomcat-servlet-3.0-api-7.0.42-5.el7_0.noarch.rpm tomcat-webapps-7.0.42-5.el7_0.noarch.rpm Red Hat Enterprise Linux Server Optional (v. 7): noarch: tomcat-7.0.42-5.el7_0.noarch.rpm tomcat-admin-webapps-7.0.42-5.el7_0.noarch.rpm tomcat-docs-webapp-7.0.42-5.el7_0.noarch.rpm tomcat-el-2.2-api-7.0.42-5.el7_0.noarch.rpm tomcat-javadoc-7.0.42-5.el7_0.noarch.rpm tomcat-jsp-2.2-api-7.0.42-5.el7_0.noarch.rpm tomcat-jsvc-7.0.42-5.el7_0.noarch.rpm tomcat-lib-7.0.42-5.el7_0.noarch.rpm tomcat-webapps-7.0.42-5.el7_0.noarch.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: tomcat-7.0.42-5.el7_0.src.rpm noarch: tomcat-7.0.42-5.el7_0.noarch.rpm tomcat-admin-webapps-7.0.42-5.el7_0.noarch.rpm tomcat-el-2.2-api-7.0.42-5.el7_0.noarch.rpm tomcat-jsp-2.2-api-7.0.42-5.el7_0.noarch.rpm tomcat-lib-7.0.42-5.el7_0.noarch.rpm tomcat-servlet-3.0-api-7.0.42-5.el7_0.noarch.rpm tomcat-webapps-7.0.42-5.el7_0.noarch.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): noarch: tomcat-docs-webapp-7.0.42-5.el7_0.noarch.rpm tomcat-javadoc-7.0.42-5.el7_0.noarch.rpm tomcat-jsvc-7.0.42-5.el7_0.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/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2013-4286.html https://www.redhat.com/security/data/cve/CVE-2013-4322.html https://www.redhat.com/security/data/cve/CVE-2014-0186.html 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 2014 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFTl19oXlSAg2UNWIIRAtBbAKC7vobzGfmj7+XLqDJcyozhM9Jb1gCgp67/ eeFmagwqjXRCGIVdGbrAhW8= =diBu - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBU5fb5BLndAQH1ShLAQIzzg//U8HRNCsHg57ZjteegCzjZ1QdIAiKVspn GOPmu3PPgdMSTQvuAwjbSPUYt/+nOeUc5ds8YWkKxGDDkrRetoTMPtH6Ecizv8bY zUmVuDOkbtlz+nh28N+OuIfXDv/5RAwUhqGxklBNEUw0FQbY5wlmfkcUe28ha/u7 LgfQJ8CleKhleeXhlwKdZdvx1R8Le+AVLj8r2EdLtXhfP1jEFFQb4yfOAihxWbO2 zHeMhB53ga80D5Ayp/qSHVKlTHQpoXUsW7Y+GUaf3hbZ83abpRbpaJzAyzZl7OGy C8TztvU89HfmByh+UGZ85aMh/86shN99FUzQKiB6Sp8nPDRNDirkhPT9Th2VEwjs 2qNsLF+NUuWkDYLC7jiAHSDISqNAVrch8bSj98lu5qdWTxgJAzLBNOp8ovByvtQq nydMpeG4VP1HnO0NQ6N6qFW6z6Uq2amehPPeIqrPhXFlBj1tek9spgU4X89vDVcY uo3oAXvP/pqxTH4sxLqgEHbLKTmynLQtCIRUIWiWRwEsuZhn06z6tsJEMFkz1xfB ulaifJKp5u3CzCeP9mSu13Y/DYDhMq1rZia0eUqpCxWz68NawgpRuGS1Z3KGd7JX dp7N0oQEEOlRCZbVVDhU87gAQquuBCB9Y+rkszC45PaWrpD8W/g44PcIQdueOvEZ Z/272/s9bIA= =jrLe -----END PGP SIGNATURE-----