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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.2125.2 Apache Tomcat 9.x vulnerabilities 10 August 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Apache Tomcat Publisher: Apache Operating System: Windows UNIX variants (UNIX, Linux, OSX) Impact/Access: Denial of Service -- Remote/Unauthenticated Access Confidential Data -- Remote/Unauthenticated Reduced Security -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-8037 CVE-2018-8034 CVE-2018-1336 Original Bulletin: http://tomcat.apache.org/security-9.html Comment: This bulletin contains three (3) Apache security advisories. Revision History: August 10 2018: Updated description for CVE-2018-8037 July 23 2018: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- CVE-2018-1336 Apache Tomcat - Denial of Service Severity: Important Vendor: The Apache Software Foundation Versions Affected: Apache Tomcat 9.0.0.M9 to 9.0.7 Apache Tomcat 8.5.0 to 8.5.30 Apache Tomcat 8.0.0.RC1 to 8.0.51 Apache Tomcat 7.0.28 to 7.0.86 Description: An improper handing of overflow in the UTF-8 decoder with supplementary characters can lead to an infinite loop in the decoder causing a Denial of Service. Mitigation: Users of the affected versions should apply one of the following mitigations: - - Upgrade to Apache Tomcat 9.0.7 or later. - - Upgrade to Apache Tomcat 8.5.32 or later. - - Upgrade to Apache Tomcat 8.0.52 or later. - - Upgrade to Apache Tomcat 7.0.90 or later. History: 2018-07-22 Original advisory References: [1] http://tomcat.apache.org/security-9.html - -------------------------------------------------------------------------------- CVE-2018-8034 Apache Tomcat - Security Constraint Bypass Severity: Low Vendor: The Apache Software Foundation Versions Affected: Apache Tomcat 9.0.0.M1 to 9.0.9 Apache Tomcat 8.5.0 to 8.5.31 Apache Tomcat 8.0.0.RC1 to 8.0.52 Apache Tomcat 7.0.35 to 7.0.88 Description: The host name verification when using TLS with the WebSocket client was missing. It is now enabled by default. Mitigation: Users of the affected versions should apply one of the following mitigations: - - Upgrade to Apache Tomcat 9.0.10 or later. - - Upgrade to Apache Tomcat 8.5.32 or later. - - Upgrade to Apache Tomcat 8.0.53 or later. - - Upgrade to Apache Tomcat 7.0.90 or later. History: 2018-07-22 Original advisory References: [1] http://tomcat.apache.org/security-9.html - -------------------------------------------------------------------------------- CVE-2018-8037 Apache Tomcat - Information Disclosure Severity: Important Vendor: The Apache Software Foundation Versions Affected: Apache Tomcat 9.0.0.M9 to 9.0.9 Apache Tomcat 8.5.5 to 8.5.31 Description: If an async request was completed by the application at the same time as the container triggered the async timeout, a race condition existed that could result in a user seeing a response intended for a different user. An additional issue was present in the NIO and NIO2 connectors that did not correctly track the closure of the connection when an async request was completed by the application and timed out by the container at the same time. This could also result in a user seeing a response intended for another user. Mitigation: Users of the affected versions should apply one of the following mitigations: - - Upgrade to Apache Tomcat 9.0.10 or later. - - Upgrade to Apache Tomcat 8.5.32 or later. History: 2018-07-22 Original advisory 2018-08-09 Update description References: [1] http://tomcat.apache.org/security-9.html - --------------------------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. 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Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== 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 iQIVAwUBW20ZqGaOgq3Tt24GAQjPiBAAvzSjfOrKi0c9wWweoCzsQVPaPUauHYex UKM9NTYpoBIW6D6QYrCzA40Z0y2KV4yn9xzZX4c1ArnJ5vfIgPm6dhMKHJy4yWYw reZ9ds7u+Nu9Fjl/EjWmH96f46CRisbHWRGDqySOuWRboEFDpuwfAg0yGNXNLvnL PJJ6FbK8kYcl96qaoUhdFA5Oqv6J22pBa19zxBBC7q4XojZmauzaDwtvlMzmewl8 mmsduOrLvppK2degktzMMniQ9Impo9GH3k14gIl0tySXfejNwKPnuY86Mq26db6M 28mwQb1Crs5RTjxBItCeu7h/vdm9UpbcdMbH2qI/m+opfnw9mnSYFiXq75TcQUCU I7mtehtueErC0mV/dy2w5e9e7n5hCR3fHEQuCumSb4ddnmzwTlaiPpcYEpvr1Hbe bL8HUfhrPoo91Y8WvrYVbrJichU6DC/Lyc3VL0pdS8eAqUQ7JhVef2Hqv+EbSV1Q JfJaOxv1ToW8pXCPl9KQIXkeYz7jI8rP4UQjuirdlxmag9mahCavw79UKIepBG/J bD2fRKFDMBB5CnaAL8n5Kn1HDzfUanCcEaTzruOoHTf398UCz4EmMxn5PyDY5g/L q7MaRKBsr3cDYL9nHz5pUQrU10pM93rHy686KTsWwM/KYhafJ7kEBUOwjIh2qLrr V5gpq+/5teQ= =XlJo -----END PGP SIGNATURE-----