ID

VAR-201607-0321

CVE

CVE-2016-3092

TITLE

Apache Commons FileUpload vulnerable to denial-of-service (DoS)

DESCRIPTION

The MultipartStream class in Apache Commons Fileupload before 1.3.2, as used in Apache Tomcat 7.x before 7.0.70, 8.x before 8.0.36, 8.5.x before 8.5.3, and 9.x before 9.0.0.M7 and other products, allows remote attackers to cause a denial of service (CPU consumption) via a long boundary string. Apache Commons FileUpload provided by the Apache Software Foundation contains a flaw when processing multi-part requests, which may lead to a denial-of-service (DoS). TERASOLUNA FW(Struts1) Team of NTT DATA Corporation reported this vulnerability to IPA. JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.Processing a specially crafted request may result in the server's CPU resources to be exhausted. Apache Commons FileUpload is prone to a remote denial-of-service vulnerability. Attackers can exploit this issue to cause the application to become unresponsive; resulting in a denial-of-service condition. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: Red Hat JBoss Web Server 3.1.0 security and enhancement update Advisory ID: RHSA-2017:0455-01 Product: Red Hat JBoss Web Server Advisory URL: https://access.redhat.com/errata/RHSA-2017:0455 Issue date: 2015-11-12 Updated on: 2017-03-07 CVE Names: CVE-2016-0762 CVE-2016-1240 CVE-2016-3092 CVE-2016-5018 CVE-2016-6325 CVE-2016-6794 CVE-2016-6796 CVE-2016-6797 CVE-2016-6816 CVE-2016-8735 CVE-2016-8745 ===================================================================== 1. Summary: An update is now available for Red Hat JBoss Web Server 3 for RHEL 6. Red Hat Product Security has rated this update as having a security impact of Important. 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 Web Server 3.1 for RHEL 6 - i386, noarch, ppc64, x86_64 3. Description: Red Hat JBoss Web Server is a fully integrated and certified set of components for hosting Java web applications. It is comprised of the Apache HTTP Server, the Apache Tomcat Servlet container, Apache Tomcat Connector (mod_jk), JBoss HTTP Connector (mod_cluster), Hibernate, and the Tomcat Native library. This release of Red Hat JBoss Web Server 3.1.0 serves as a replacement for Red Hat JBoss Web Server 3.0.3, and includes enhancements. Security Fix(es): * It was reported that the Tomcat init script performed unsafe file handling, which could result in local privilege escalation. (CVE-2016-1240) * It was discovered that the Tomcat packages installed certain configuration files read by the Tomcat initialization script as writeable to the tomcat group. A member of the group or a malicious web application deployed on Tomcat could use this flaw to escalate their privileges. (CVE-2016-6325) * The JmxRemoteLifecycleListener was not updated to take account of Oracle's fix for CVE-2016-3427. JMXRemoteLifecycleListener is only included in EWS 2.x and JWS 3.x source distributions. If you deploy a Tomcat instance built from source, using the EWS 2.x, or JWS 3.x distributions, an attacker could use this flaw to launch a remote code execution attack on your deployed instance. (CVE-2016-8735) * A denial of service vulnerability was identified in Commons FileUpload that occurred when the length of the multipart boundary was just below the size of the buffer (4096 bytes) used to read the uploaded file if the boundary was the typical tens of bytes long. (CVE-2016-3092) * It was discovered that the code that parsed the HTTP request line permitted invalid characters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack, or obtain sensitive information from requests other then their own. (CVE-2016-6816) * A bug was discovered in the error handling of the send file code for the NIO HTTP connector. This led to the current Processor object being added to the Processor cache multiple times allowing information leakage between requests including, and not limited to, session ID and the response body. (CVE-2016-8745) * The Realm implementations did not process the supplied password if the supplied user name did not exist. This made a timing attack possible to determine valid user names. Note that the default configuration includes the LockOutRealm which makes exploitation of this vulnerability harder. (CVE-2016-0762) * It was discovered that a malicious web application could bypass a configured SecurityManager via a Tomcat utility method that was accessible to web applications. (CVE-2016-5018) * It was discovered that when a SecurityManager is configured Tomcat's system property replacement feature for configuration files could be used by a malicious web application to bypass the SecurityManager and read system properties that should not be visible. (CVE-2016-6794) * It was discovered that a malicious web application could bypass a configured SecurityManager via manipulation of the configuration parameters for the JSP Servlet. (CVE-2016-6796) * It was discovered that it was possible for a web application to access any global JNDI resource whether an explicit ResourceLink had been configured or not. (CVE-2016-6797) The CVE-2016-6325 issue was discovered by Red Hat Product Security. Enhancement(s): This enhancement update adds the Red Hat JBoss Web Server 3.1.0 packages to Red Hat Enterprise Linux 6. These packages provide a number of enhancements over the previous version of Red Hat JBoss Web Server. (JIRA#JWS-267) Users of Red Hat JBoss Web Server are advised to upgrade to these updated packages, which add this enhancement. 4. Solution: Before applying the update, back up your existing Red Hat JBoss Web Server installation (including all applications and configuration files). For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the updated packages, the httpd daemon will be restarted automatically. 5. Bugs fixed (https://bugzilla.redhat.com/): 1349468 - CVE-2016-3092 tomcat: Usage of vulnerable FileUpload package can result in denial of service 1367447 - CVE-2016-6325 tomcat: tomcat writable config files allow privilege escalation 1376712 - CVE-2016-1240 tomcat: unsafe chown of catalina.log in tomcat init script allows privilege escalation 1390493 - CVE-2016-6797 tomcat: unrestricted access to global resources 1390515 - CVE-2016-6796 tomcat: security manager bypass via JSP Servlet config parameters 1390520 - CVE-2016-6794 tomcat: system property disclosure 1390525 - CVE-2016-5018 tomcat: security manager bypass via IntrospectHelper utility function 1390526 - CVE-2016-0762 tomcat: timing attack in Realm implementation 1397484 - CVE-2016-6816 tomcat: HTTP Request smuggling vulnerability due to permitting invalid character in HTTP requests 1397485 - CVE-2016-8735 tomcat: Remote code execution vulnerability in JmxRemoteLifecycleListener 1403824 - CVE-2016-8745 tomcat: information disclosure due to incorrect Processor sharing 6. JIRA issues fixed (https://issues.jboss.org/): JWS-267 - RHEL 6 Errata JIRA 7. Package List: Red Hat JBoss Web Server 3.1 for RHEL 6: Source: hibernate4-eap6-4.2.23-1.Final_redhat_1.1.ep6.el6.src.rpm jbcs-httpd24-apache-commons-daemon-1.0.15-1.redhat_2.1.jbcs.el6.src.rpm jbcs-httpd24-apache-commons-daemon-jsvc-1.0.15-17.redhat_2.jbcs.el6.src.rpm mod_cluster-1.3.5-2.Final_redhat_2.1.ep7.el6.src.rpm tomcat-native-1.2.8-9.redhat_9.ep7.el6.src.rpm tomcat-vault-1.0.8-9.Final_redhat_2.1.ep7.el6.src.rpm tomcat7-7.0.70-16.ep7.el6.src.rpm tomcat8-8.0.36-17.ep7.el6.src.rpm i386: jbcs-httpd24-apache-commons-daemon-jsvc-1.0.15-17.redhat_2.jbcs.el6.i686.rpm jbcs-httpd24-apache-commons-daemon-jsvc-debuginfo-1.0.15-17.redhat_2.jbcs.el6.i686.rpm tomcat-native-1.2.8-9.redhat_9.ep7.el6.i686.rpm tomcat-native-debuginfo-1.2.8-9.redhat_9.ep7.el6.i686.rpm noarch: hibernate4-c3p0-eap6-4.2.23-1.Final_redhat_1.1.ep6.el6.noarch.rpm hibernate4-core-eap6-4.2.23-1.Final_redhat_1.1.ep6.el6.noarch.rpm hibernate4-eap6-4.2.23-1.Final_redhat_1.1.ep6.el6.noarch.rpm hibernate4-entitymanager-eap6-4.2.23-1.Final_redhat_1.1.ep6.el6.noarch.rpm hibernate4-envers-eap6-4.2.23-1.Final_redhat_1.1.ep6.el6.noarch.rpm jbcs-httpd24-apache-commons-daemon-1.0.15-1.redhat_2.1.jbcs.el6.noarch.rpm jbcs-httpd24-runtime-1-3.jbcs.el6.noarch.rpm mod_cluster-1.3.5-2.Final_redhat_2.1.ep7.el6.noarch.rpm mod_cluster-tomcat7-1.3.5-2.Final_redhat_2.1.ep7.el6.noarch.rpm mod_cluster-tomcat8-1.3.5-2.Final_redhat_2.1.ep7.el6.noarch.rpm tomcat-vault-1.0.8-9.Final_redhat_2.1.ep7.el6.noarch.rpm tomcat7-7.0.70-16.ep7.el6.noarch.rpm tomcat7-admin-webapps-7.0.70-16.ep7.el6.noarch.rpm tomcat7-docs-webapp-7.0.70-16.ep7.el6.noarch.rpm tomcat7-el-2.2-api-7.0.70-16.ep7.el6.noarch.rpm tomcat7-javadoc-7.0.70-16.ep7.el6.noarch.rpm tomcat7-jsp-2.2-api-7.0.70-16.ep7.el6.noarch.rpm tomcat7-jsvc-7.0.70-16.ep7.el6.noarch.rpm tomcat7-lib-7.0.70-16.ep7.el6.noarch.rpm tomcat7-log4j-7.0.70-16.ep7.el6.noarch.rpm tomcat7-selinux-7.0.70-16.ep7.el6.noarch.rpm tomcat7-servlet-3.0-api-7.0.70-16.ep7.el6.noarch.rpm tomcat7-webapps-7.0.70-16.ep7.el6.noarch.rpm tomcat8-8.0.36-17.ep7.el6.noarch.rpm tomcat8-admin-webapps-8.0.36-17.ep7.el6.noarch.rpm tomcat8-docs-webapp-8.0.36-17.ep7.el6.noarch.rpm tomcat8-el-2.2-api-8.0.36-17.ep7.el6.noarch.rpm tomcat8-javadoc-8.0.36-17.ep7.el6.noarch.rpm tomcat8-jsp-2.3-api-8.0.36-17.ep7.el6.noarch.rpm tomcat8-jsvc-8.0.36-17.ep7.el6.noarch.rpm tomcat8-lib-8.0.36-17.ep7.el6.noarch.rpm tomcat8-log4j-8.0.36-17.ep7.el6.noarch.rpm tomcat8-selinux-8.0.36-17.ep7.el6.noarch.rpm tomcat8-servlet-3.1-api-8.0.36-17.ep7.el6.noarch.rpm tomcat8-webapps-8.0.36-17.ep7.el6.noarch.rpm ppc64: jbcs-httpd24-apache-commons-daemon-jsvc-1.0.15-17.redhat_2.jbcs.el6.ppc64.rpm jbcs-httpd24-apache-commons-daemon-jsvc-debuginfo-1.0.15-17.redhat_2.jbcs.el6.ppc64.rpm x86_64: jbcs-httpd24-apache-commons-daemon-jsvc-1.0.15-17.redhat_2.jbcs.el6.x86_64.rpm jbcs-httpd24-apache-commons-daemon-jsvc-debuginfo-1.0.15-17.redhat_2.jbcs.el6.x86_64.rpm tomcat-native-1.2.8-9.redhat_9.ep7.el6.x86_64.rpm tomcat-native-debuginfo-1.2.8-9.redhat_9.ep7.el6.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-2016-0762 https://access.redhat.com/security/cve/CVE-2016-1240 https://access.redhat.com/security/cve/CVE-2016-3092 https://access.redhat.com/security/cve/CVE-2016-5018 https://access.redhat.com/security/cve/CVE-2016-6325 https://access.redhat.com/security/cve/CVE-2016-6794 https://access.redhat.com/security/cve/CVE-2016-6796 https://access.redhat.com/security/cve/CVE-2016-6797 https://access.redhat.com/security/cve/CVE-2016-6816 https://access.redhat.com/security/cve/CVE-2016-8735 https://access.redhat.com/security/cve/CVE-2016-8745 https://access.redhat.com/security/updates/classification/#important 9. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2017 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFYvww0XlSAg2UNWIIRAnJlAJ9c1cyDXP1/dI30fGjC0wJVDGbw3QCfbnXw /PBR7pUGLbNA0xtWDwAi0Xk= =Y+gP -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202107-39 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Low Title: Apache Commons FileUpload: Multiple vulnerabilities Date: July 17, 2021 Bugs: #739350 ID: 202107-39 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities have been found in Apache Commons FileUpload, the worst of which could result in a Denial of Service condition. Background ========== The Apache Commons FileUpload package makes it easy to add robust, high-performance, file upload capability to your servlets and web applications. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-java/commons-fileupload <= 1.3 Vulnerable! ------------------------------------------------------------------- NOTE: Certain packages are still vulnerable. Users should migrate to another package if one is available or wait for the existing packages to be marked stable by their architecture maintainers. Please review the CVE identifiers referenced below for details. Impact ====== Please review the referenced CVE identifiers for details. Workaround ========== There is no known workaround at this time. Resolution ========== Gentoo has discontinued support for Apache Commons FileUpload. We recommend that users unmerge it: # emerge --ask --depclean "dev-java/commons-fileupload" NOTE: The Gentoo developer(s) maintaining Apache Commons FileUpload have discontinued support at this time. It may be possible that a new Gentoo developer will update Apache Commons FileUpload at a later date. We do not have a suggestion for a replacement at this time. References ========== [ 1 ] CVE-2013-0248 https://nvd.nist.gov/vuln/detail/CVE-2013-0248 [ 2 ] CVE-2014-0050 https://nvd.nist.gov/vuln/detail/CVE-2014-0050 [ 3 ] CVE-2016-3092 https://nvd.nist.gov/vuln/detail/CVE-2016-3092 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202107-39 Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org. License ======= Copyright 2021 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. https://creativecommons.org/licenses/by-sa/2.5 . (CVE-2016-3092) 3. Solution: The References section of this erratum contains a download link (you must log in to download the update). The JBoss server process must be restarted for the update to take effect. It is based on JBoss Application Server 7 and incorporates multiple open-source projects to provide a complete Java EE platform solution. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Note: the current version of the following document is available here: https://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c05324759 SUPPORT COMMUNICATION - SECURITY BULLETIN Document ID: c05324759 Version: 3 HPSBUX03665 rev.3 - HP-UX Tomcat-based Servlet Engine, Remote Denial of Service (DoS), URL Redirection NOTICE: The information in this Security Bulletin should be acted upon as soon as possible. Release Date: 2016-12-01 Last Updated: 2016-11-30 Potential Security Impact: Remote: Denial of Service (DoS), URL Redirection Source: Hewlett Packard Enterprise, Product Security Response Team VULNERABILITY SUMMARY Potential security vulnerabilities have been identified in the HP-UX Tomcat-based Servlet Engine. These vulnerabilities could be exploited remotely to create a Denial of Service (DoS) or URL Redirection. References: - CVE-2016-3092 - Apache Tomcat, Remote Denial of Service (DoS) - CVE-2016-5388 - Apache Tomcat, Remote URL Redirection SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. - HP-UX Tomcat-based Servlet v.7.x Engine B.11.31 - Tomcat 7 prior to D.7.0.70.01 BACKGROUND CVSS Base Metrics ================= Reference, CVSS V3 Score/Vector, CVSS V2 Score/Vector CVE-2016-3092 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 7.8 (AV:N/AC:L/Au:N/C:N/I:N/A:C) CVE-2016-5388 8.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H 5.1 (AV:N/AC:H/Au:N/C:P/I:P/A:P) Information on CVSS is documented in HPE Customer Notice HPSN-2008-002 here: https://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c01345499 RESOLUTION HPE has provided the following software update to resolve the vulnerabilities in HP-UX Apache Tomcat 7 Servlet Engine: * Tomcat 7.0.70.01 for HP-UX Release B.11.31 (IPF and PA-RISC) + 64 bit Depot: HP_UX_11.31_HPUXWS24ATW-B501-11-31-64.depot + 32 bit Depot: HP_UX_11.31_HPUXWS24ATW-B501-11-31-32.depot * **Note:** The depot file can be found here: + <https://h20392.www2.hpe.com/portal/swdepot/displayProductInfo.do?productNumb r=HPUXWSATW501> * Tomcat 7.0.70.01 for Apache 2.2: + Install the depot via the link provided and then follow these steps to enable Tomcat 7.0.70.01 for Apache 2.2: 1.Run aswremovea to remove the previously installed Tomcat (if any) 2.rm arf /opt/hpws22/tomcat 3.Create the link using ln -s /opt/hpws24/tomcat /opt/hpws22/tomcat **MANUAL ACTIONS: Yes - Update** Download and install the software update **PRODUCT SPECIFIC INFORMATION** HP-UX Software Assistant: HP-UX Software Assistant is an enhanced application that replaces HP-UX Security Patch Check. It analyzes all Security Bulletins issued by HPE and lists recommended actions that may apply to a specific HP-UX system. It can also download patches and create a depot automatically. For more information see: * <https://h20392.www2.hpe.com/portal/swdepot/displayProductInfo.do?productNumb r=B6834AA> The following text is for use by the HP-UX Software Assistant. AFFECTED VERSIONS HP-UX B.11.31 IA/PA =================== hpuxws22TOMCAT.TOMCAT hpuxws22TOMCAT.TOMCAT2 action: install revision D.7.0.70.01 or subsequent END AFFECTED VERSIONS HISTORY Version:1 (rev.1) - 4 November 2016 Initial release Version:2 (rev.2) - 8 November 2016 Removed extraneous text from background section Version:3 (rev.3) - 1 December 2016 Details added to enable Tomcat 7.0.70.01 for Apache 2.2, removed PSRT numbers, simplified title Third Party Security Patches: Third party security patches that are to be installed on systems running Hewlett Packard Enterprise (HPE) software products should be applied in accordance with the customer's patch management policy. Support: For issues about implementing the recommendations of this Security Bulletin, contact normal HPE Services support channel. For other issues about the content of this Security Bulletin, send e-mail to security-alert@hpe.com. Report: To report a potential security vulnerability for any HPE supported product: Web form: https://www.hpe.com/info/report-security-vulnerability Email: security-alert@hpe.com Subscribe: To initiate a subscription to receive future HPE Security Bulletin alerts via Email: http://www.hpe.com/support/Subscriber_Choice Security Bulletin Archive: A list of recently released Security Bulletins is available here: http://www.hpe.com/support/Security_Bulletin_Archive Software Product Category: The Software Product Category is represented in the title by the two characters following HPSB. 3C = 3COM 3P = 3rd Party Software GN = HPE General Software HF = HPE Hardware and Firmware MU = Multi-Platform Software NS = NonStop Servers OV = OpenVMS PV = ProCurve ST = Storage Software UX = HP-UX Copyright 2016 Hewlett Packard Enterprise Hewlett Packard Enterprise shall not be liable for technical or editorial errors or omissions contained herein. The information provided is provided "as is" without warranty of any kind. To the extent permitted by law, neither HP or its affiliates, subcontractors or suppliers will be liable for incidental,special or consequential damages including downtime cost; lost profits; damages relating to the procurement of substitute products or services; or damages for loss of data, or software restoration. The information in this document is subject to change without notice. Hewlett Packard Enterprise and the names of Hewlett Packard Enterprise products referenced herein are trademarks of Hewlett Packard Enterprise in the United States and other countries. Other product and company names mentioned herein may be trademarks of their respective owners. ========================================================================== Ubuntu Security Notice USN-3024-1 July 05, 2016 tomcat6, tomcat7 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 LTS - Ubuntu 15.10 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS Summary: Several security issues were fixed in Tomcat. A remote attacker could use this issue to possibly list a parent directory . This issue only affected Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 15.10. (CVE-2015-5174) It was discovered that the Tomcat mapper component incorrectly handled redirects. A remote attacker could use this issue to determine the existence of a directory. This issue only affected Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 15.10. A remote attacker could possibly use this issue to hijack web sessions. This issue only affected Ubuntu 14.04 LTS and Ubuntu 15.10. A remote attacker could possibly use this issue to bypass CSRF protection mechanisms. This issue only affected Ubuntu 14.04 LTS and Ubuntu 15.10. (CVE-2015-5351) It was discovered that Tomcat did not place StatusManagerServlet on the RestrictedServlets list. This issue only affected Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 15.10. (CVE-2016-0706) It was discovered that the Tomcat session-persistence implementation incorrectly handled session attributes. A remote attacker could possibly use this issue to execute arbitrary code in a privileged context. This issue only affected Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 15.10. (CVE-2016-0714) It was discovered that the Tomcat setGlobalContext method incorrectly checked if callers were authorized. This issue only affected Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 15.10. (CVE-2016-0763) It was discovered that the Tomcat Fileupload library incorrectly handled certain upload requests. (CVE-2016-3092) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS: libtomcat7-java 7.0.68-1ubuntu0.1 Ubuntu 15.10: libtomcat7-java 7.0.64-1ubuntu0.3 Ubuntu 14.04 LTS: libtomcat7-java 7.0.52-1ubuntu0.6 Ubuntu 12.04 LTS: libtomcat6-java 6.0.35-1ubuntu3.7 In general, a standard system update will make all the necessary changes. A remote attacker can take advantage of this flaw by sending file upload requests that cause the HTTP server using the Apache Commons Fileupload library to become unresponsive, preventing the server from servicing other requests. For the stable distribution (jessie), this problem has been fixed in version 7.0.56-3+deb8u3. For the testing distribution (stretch), this problem has been fixed in version 7.0.70-1. For the unstable distribution (sid), this problem has been fixed in version 7.0.70-1. We recommend that you upgrade your tomcat7 packages. Description: Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages (JSP) technologies. It contains security fixes for the Tomcat 7 component. Only users of the Tomcat 7 component in JBoss Web Server need to apply the fixes delivered in this release. Security Fix(es): * A CSRF flaw was found in Tomcat's the index pages for the Manager and Host Manager applications. These applications included a valid CSRF token when issuing a redirect as a result of an unauthenticated request to the root of the web application. This token could then be used by an attacker to perform a CSRF attack. (CVE-2015-5351) * It was found that several Tomcat session persistence mechanisms could allow a remote, authenticated user to bypass intended SecurityManager restrictions and execute arbitrary code in a privileged context via a web application that placed a crafted object in a session. (CVE-2016-0714) * A security manager bypass flaw was found in Tomcat that could allow remote, authenticated users to access arbitrary application data, potentially resulting in a denial of service. (CVE-2016-3092) * A session fixation flaw was found in the way Tomcat recycled the requestedSessionSSL field. If at least one web application was configured to use the SSL session ID as the HTTP session ID, an attacker could reuse a previously used session ID for further requests. (CVE-2016-0706) 4. References: https://access.redhat.com/security/cve/CVE-2015-5346 https://access.redhat.com/security/cve/CVE-2015-5351 https://access.redhat.com/security/cve/CVE-2016-0706 https://access.redhat.com/security/cve/CVE-2016-0714 https://access.redhat.com/security/cve/CVE-2016-0763 https://access.redhat.com/security/cve/CVE-2016-3092 Security Impact: https://access.redhat.com/security/updates/classification/#important 8

AFFECTED PRODUCTS