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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2014.1073 Moderate: tomcat security update 3 July 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 Provide Misleading Information -- Remote/Unauthenticated Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2014-0099 CVE-2014-0096 CVE-2014-0075 Reference: ESB-2014.0828 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2014-0827.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: tomcat security update Advisory ID: RHSA-2014:0827-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0827.html Issue date: 2014-07-02 CVE Names: CVE-2014-0075 CVE-2014-0096 CVE-2014-0099 ===================================================================== 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 Moderate 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 discovered that Apache Tomcat did not limit the length of chunk sizes when using chunked transfer encoding. A remote attacker could use this flaw to perform a denial of service attack against Tomcat by streaming an unlimited quantity of data, leading to excessive consumption of server resources. (CVE-2014-0075) It was found that Apache Tomcat did not check for overflowing values when parsing request content length headers. A remote attacker could use this flaw to perform an HTTP request smuggling attack on a Tomcat server located behind a reverse proxy that processed the content length header correctly. (CVE-2014-0099) It was found that the org.apache.catalina.servlets.DefaultServlet implementation in Apache Tomcat allowed the definition of XML External Entities (XXEs) in provided XSLTs. A malicious application could use this to circumvent intended security restrictions to disclose sensitive information. (CVE-2014-0096) The CVE-2014-0075 issue was discovered by David Jorm of Red Hat Product Security. 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/): 1072776 - CVE-2014-0075 Tomcat/JBossWeb: Limited DoS in chunked transfer encoding input filter 1088342 - CVE-2014-0096 Tomcat/JBossWeb: XXE vulnerability via user supplied XSLTs 1102030 - CVE-2014-0099 Tomcat/JBossWeb: Request smuggling via malicious content length header 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: tomcat-7.0.42-6.el7_0.src.rpm noarch: tomcat-servlet-3.0-api-7.0.42-6.el7_0.noarch.rpm Red Hat Enterprise Linux Client Optional (v. 7): noarch: tomcat-7.0.42-6.el7_0.noarch.rpm tomcat-admin-webapps-7.0.42-6.el7_0.noarch.rpm tomcat-docs-webapp-7.0.42-6.el7_0.noarch.rpm tomcat-el-2.2-api-7.0.42-6.el7_0.noarch.rpm tomcat-javadoc-7.0.42-6.el7_0.noarch.rpm tomcat-jsp-2.2-api-7.0.42-6.el7_0.noarch.rpm tomcat-jsvc-7.0.42-6.el7_0.noarch.rpm tomcat-lib-7.0.42-6.el7_0.noarch.rpm tomcat-webapps-7.0.42-6.el7_0.noarch.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: tomcat-7.0.42-6.el7_0.src.rpm noarch: tomcat-servlet-3.0-api-7.0.42-6.el7_0.noarch.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): noarch: tomcat-7.0.42-6.el7_0.noarch.rpm tomcat-admin-webapps-7.0.42-6.el7_0.noarch.rpm tomcat-docs-webapp-7.0.42-6.el7_0.noarch.rpm tomcat-el-2.2-api-7.0.42-6.el7_0.noarch.rpm tomcat-javadoc-7.0.42-6.el7_0.noarch.rpm tomcat-jsp-2.2-api-7.0.42-6.el7_0.noarch.rpm tomcat-jsvc-7.0.42-6.el7_0.noarch.rpm tomcat-lib-7.0.42-6.el7_0.noarch.rpm tomcat-webapps-7.0.42-6.el7_0.noarch.rpm Red Hat Enterprise Linux Server (v. 7): Source: tomcat-7.0.42-6.el7_0.src.rpm noarch: tomcat-7.0.42-6.el7_0.noarch.rpm tomcat-admin-webapps-7.0.42-6.el7_0.noarch.rpm tomcat-el-2.2-api-7.0.42-6.el7_0.noarch.rpm tomcat-jsp-2.2-api-7.0.42-6.el7_0.noarch.rpm tomcat-lib-7.0.42-6.el7_0.noarch.rpm tomcat-servlet-3.0-api-7.0.42-6.el7_0.noarch.rpm tomcat-webapps-7.0.42-6.el7_0.noarch.rpm Red Hat Enterprise Linux Server Optional (v. 7): noarch: tomcat-7.0.42-6.el7_0.noarch.rpm tomcat-admin-webapps-7.0.42-6.el7_0.noarch.rpm tomcat-docs-webapp-7.0.42-6.el7_0.noarch.rpm tomcat-el-2.2-api-7.0.42-6.el7_0.noarch.rpm tomcat-javadoc-7.0.42-6.el7_0.noarch.rpm tomcat-jsp-2.2-api-7.0.42-6.el7_0.noarch.rpm tomcat-jsvc-7.0.42-6.el7_0.noarch.rpm tomcat-lib-7.0.42-6.el7_0.noarch.rpm tomcat-webapps-7.0.42-6.el7_0.noarch.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: tomcat-7.0.42-6.el7_0.src.rpm noarch: tomcat-7.0.42-6.el7_0.noarch.rpm tomcat-admin-webapps-7.0.42-6.el7_0.noarch.rpm tomcat-el-2.2-api-7.0.42-6.el7_0.noarch.rpm tomcat-jsp-2.2-api-7.0.42-6.el7_0.noarch.rpm tomcat-lib-7.0.42-6.el7_0.noarch.rpm tomcat-servlet-3.0-api-7.0.42-6.el7_0.noarch.rpm tomcat-webapps-7.0.42-6.el7_0.noarch.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): noarch: tomcat-docs-webapp-7.0.42-6.el7_0.noarch.rpm tomcat-javadoc-7.0.42-6.el7_0.noarch.rpm tomcat-jsvc-7.0.42-6.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-2014-0075.html https://www.redhat.com/security/data/cve/CVE-2014-0096.html https://www.redhat.com/security/data/cve/CVE-2014-0099.html https://access.redhat.com/security/updates/classification/#moderate http://tomcat.apache.org/security-7.html 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) iD8DBQFTs8+9XlSAg2UNWIIRAglqAJ4sw3DT+V4pFReZSRvkoW+f90gxdgCdFn5e bVOeybWcY1fm+xgpnE7T2ZM= =O2as - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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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). 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