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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2014.1126 Moderate: tomcat6 security and bug fix update 10 July 2014 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: tomcat6 Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux WS/Desktop 6 Impact/Access: Denial of Service -- Remote/Unauthenticated Access Confidential Data -- Remote with User Interaction Reduced Security -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2014-0099 CVE-2014-0096 CVE-2014-0075 CVE-2014-0050 CVE-2013-4322 Reference: ASB-2014.0074 ESB-2014.1103 ESB-2014.1102 ESB-2014.1092.2 ESB-2014.0440 ESB-2014.0394 ESB-2014.0292 ESB-2014.0171 ESB-2014.0167 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2014-0865.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: tomcat6 security and bug fix update Advisory ID: RHSA-2014:0865-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0865.html Issue date: 2014-07-09 CVE Names: CVE-2014-0075 CVE-2014-0096 CVE-2014-0099 ===================================================================== 1. Summary: Updated tomcat6 packages that fix three security issues and two bugs are now available for Red Hat Enterprise Linux 6. 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 Desktop Optional (v. 6) - noarch Red Hat Enterprise Linux HPC Node Optional (v. 6) - noarch Red Hat Enterprise Linux Server (v. 6) - noarch Red Hat Enterprise Linux Server Optional (v. 6) - noarch Red Hat Enterprise Linux Workstation (v. 6) - noarch Red Hat Enterprise Linux Workstation Optional (v. 6) - 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. This update also fixes the following bugs: * The patch that resolved the CVE-2014-0050 issue contained redundant code. This update removes the redundant code. (BZ#1094528) * The patch that resolved the CVE-2013-4322 issue contained an invalid check that triggered a java.io.EOFException while reading trailer headers for chunked requests. This update fixes the check and the aforementioned exception is no longer triggered in the described scenario. (BZ#1095602) All Tomcat 6 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/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 1095602 - tomcat6 security patch tomcat6-6.0.24-CVE-2013-4322 typo results in application crash with EOFException 1102030 - CVE-2014-0099 Tomcat/JBossWeb: Request smuggling via malicious content length header 6. Package List: Red Hat Enterprise Linux Desktop Optional (v. 6): Source: tomcat6-6.0.24-72.el6_5.src.rpm noarch: tomcat6-6.0.24-72.el6_5.noarch.rpm tomcat6-admin-webapps-6.0.24-72.el6_5.noarch.rpm tomcat6-docs-webapp-6.0.24-72.el6_5.noarch.rpm tomcat6-el-2.1-api-6.0.24-72.el6_5.noarch.rpm tomcat6-javadoc-6.0.24-72.el6_5.noarch.rpm tomcat6-jsp-2.1-api-6.0.24-72.el6_5.noarch.rpm tomcat6-lib-6.0.24-72.el6_5.noarch.rpm tomcat6-servlet-2.5-api-6.0.24-72.el6_5.noarch.rpm tomcat6-webapps-6.0.24-72.el6_5.noarch.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): Source: tomcat6-6.0.24-72.el6_5.src.rpm noarch: tomcat6-6.0.24-72.el6_5.noarch.rpm tomcat6-admin-webapps-6.0.24-72.el6_5.noarch.rpm tomcat6-docs-webapp-6.0.24-72.el6_5.noarch.rpm tomcat6-el-2.1-api-6.0.24-72.el6_5.noarch.rpm tomcat6-javadoc-6.0.24-72.el6_5.noarch.rpm tomcat6-jsp-2.1-api-6.0.24-72.el6_5.noarch.rpm tomcat6-lib-6.0.24-72.el6_5.noarch.rpm tomcat6-servlet-2.5-api-6.0.24-72.el6_5.noarch.rpm tomcat6-webapps-6.0.24-72.el6_5.noarch.rpm Red Hat Enterprise Linux Server (v. 6): Source: tomcat6-6.0.24-72.el6_5.src.rpm noarch: tomcat6-6.0.24-72.el6_5.noarch.rpm tomcat6-el-2.1-api-6.0.24-72.el6_5.noarch.rpm tomcat6-jsp-2.1-api-6.0.24-72.el6_5.noarch.rpm tomcat6-lib-6.0.24-72.el6_5.noarch.rpm tomcat6-servlet-2.5-api-6.0.24-72.el6_5.noarch.rpm Red Hat Enterprise Linux Server Optional (v. 6): Source: tomcat6-6.0.24-72.el6_5.src.rpm noarch: tomcat6-admin-webapps-6.0.24-72.el6_5.noarch.rpm tomcat6-docs-webapp-6.0.24-72.el6_5.noarch.rpm tomcat6-javadoc-6.0.24-72.el6_5.noarch.rpm tomcat6-webapps-6.0.24-72.el6_5.noarch.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: tomcat6-6.0.24-72.el6_5.src.rpm noarch: tomcat6-6.0.24-72.el6_5.noarch.rpm tomcat6-el-2.1-api-6.0.24-72.el6_5.noarch.rpm tomcat6-jsp-2.1-api-6.0.24-72.el6_5.noarch.rpm tomcat6-lib-6.0.24-72.el6_5.noarch.rpm tomcat6-servlet-2.5-api-6.0.24-72.el6_5.noarch.rpm Red Hat Enterprise Linux Workstation Optional (v. 6): Source: tomcat6-6.0.24-72.el6_5.src.rpm noarch: tomcat6-admin-webapps-6.0.24-72.el6_5.noarch.rpm tomcat6-docs-webapp-6.0.24-72.el6_5.noarch.rpm tomcat6-javadoc-6.0.24-72.el6_5.noarch.rpm tomcat6-webapps-6.0.24-72.el6_5.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 https://tomcat.apache.org/security-6.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) iD8DBQFTvXwnXlSAg2UNWIIRAlETAJ9h/t6cImOQb/wTXhxFFhcuNAuXXwCgrS7D OIiDqTphtomRGnnfl7/JS9g= =AWBW - -----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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBU73SzxLndAQH1ShLAQJj4A/8DVt/S1KRZ0Qas2uZEZ95OdaNkpcoOZ1k lC6OWVckNuUYno//LwGuf+1mXvFvyxpPyAymTOGC4QUDHVdefSRruNFMMeXBql86 kkG867+CXMRlHJe+mVvooL448AjlTvMP17ZRMxi9mMcsrXbBxcNysHEQ2TmKPJlc mnCsgObZlhu5tCCcHZTWRmErWBZlEmCa8vHI2BGL0YI/52FnSgyNjc5tfWaVIF4P 7HWPz7CLc4YFB09QXa8JJ1wJIy+hrxTLxlRnBU2ehNvkQaeKN8UxtkKhM9QQ8O8I ewGtoSHVvowNbuh2cg4Wlfd9k+srHQUiKky9akUk46OYCAyJfr3U9GPbnvBTtinn iXzjd69uV2tGXE+nKAIkzy+oexTUuLB9PLEmMjdBCN+OZhR14JgracVUuAROFhle HOLNhK+heZSBhga51XOmhczR8sEdrIoQWvVLxGBY33cl7BcyQI++0NQ/W8pHH2lT qAWHk+Aay/PlNEWSudTUy8afJYaIFV0syGnmebR8IVAY2n8Qsrqrydyjd8nMtEfI 4Vnjwh6ryBFizfWARTKGzuYKJouMKHwaf3MFFpaJhHpL6GQq/LGwuDwkKVbUtqdZ a/r4EHGBWcdBi7yXh16PdBlfWwf+RPpi6cW5mraez6/K+eqedvnm9oWiiXKLc4y5 wrGDiCZCsxg= =/Usl -----END PGP SIGNATURE-----