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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.0234 OpenJDK 8 vulnerabilities 26 January 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: openjdk-8-jdk Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Access Privileged Data -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-3289 CVE-2017-3272 CVE-2017-3261 CVE-2017-3253 CVE-2017-3252 CVE-2017-3241 CVE-2017-3231 CVE-2016-5552 CVE-2016-5549 CVE-2016-5548 CVE-2016-5547 CVE-2016-5546 CVE-2016-2183 Reference: ASB-2017.0005 Original Bulletin: http://www.ubuntu.com/usn/usn-3179-1 - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3179-1 January 25, 2017 openjdk-8 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 16.10 - - Ubuntu 16.04 LTS Summary: Several security issues were fixed in OpenJDK 8. Software Description: - - openjdk-8: Open Source Java implementation Details: Karthik Bhargavan and Gaetan Leurent discovered that the DES and Triple DES ciphers were vulnerable to birthday attacks. A remote attacker could possibly use this flaw to obtain clear text data from long encrypted sessions. This update moves those algorithms to the legacy algorithm set and causes them to be used only if no non-legacy algorithms can be negotiated. (CVE-2016-2183) It was discovered that OpenJDK accepted ECSDA signatures using non-canonical DER encoding. An attacker could use this to modify or expose sensitive data. (CVE-2016-5546) It was discovered that OpenJDK did not properly verify object identifier (OID) length when reading Distinguished Encoding Rules (DER) records, as used in x.509 certificates and elsewhere. An attacker could use this to cause a denial of service (memory consumption). (CVE-2016-5547) It was discovered that covert timing channel vulnerabilities existed in the DSA and ECDSA implementations in OpenJDK. A remote attacker could use this to expose sensitive information. (CVE-2016-5548, CVE-2016-5549) It was discovered that the URLStreamHandler class in OpenJDK did not properly parse user information from a URL. A remote attacker could use this to expose sensitive information. (CVE-2016-5552) It was discovered that the URLClassLoader class in OpenJDK did not properly check access control context when downloading class files. A remote attacker could use this to expose sensitive information. (CVE-2017-3231) It was discovered that the Remote Method Invocation (RMI) implementation in OpenJDK performed deserialization of untrusted inputs. A remote attacker could use this to execute arbitrary code. (CVE-2017-3241) It was discovered that the Java Authentication and Authorization Service (JAAS) component of OpenJDK did not properly perform user search LDAP queries. An attacker could use a specially constructed LDAP entry to expose or modify sensitive information. (CVE-2017-3252) It was discovered that the PNGImageReader class in OpenJDK did not properly handle iTXt and zTXt chunks. An attacker could use this to cause a denial of service (memory consumption). (CVE-2017-3253) It was discovered that integer overflows existed in the SocketInputStream and SocketOutputStream classes of OpenJDK. An attacker could use this to expose sensitive information. (CVE-2017-3261) It was discovered that the atomic field updaters in the java.util.concurrent.atomic package in OpenJDK did not properly restrict access to protected field members. An attacker could use this to specially craft a Java application or applet that could bypass Java sandbox restrictions. (CVE-2017-3272) It was discovered that a vulnerability existed in the class construction implementation in OpenJDK. An attacker could use this to specially craft a Java application or applet that could bypass Java sandbox restrictions. (CVE-2017-3289) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.10: openjdk-8-jdk 8u121-b13-0ubuntu1.16.10.2 openjdk-8-jdk-headless 8u121-b13-0ubuntu1.16.10.2 openjdk-8-jre 8u121-b13-0ubuntu1.16.10.2 openjdk-8-jre-headless 8u121-b13-0ubuntu1.16.10.2 openjdk-8-jre-jamvm 8u121-b13-0ubuntu1.16.10.2 openjdk-8-jre-zero 8u121-b13-0ubuntu1.16.10.2 Ubuntu 16.04 LTS: openjdk-8-jdk 8u121-b13-0ubuntu1.16.04.2 openjdk-8-jdk-headless 8u121-b13-0ubuntu1.16.04.2 openjdk-8-jre 8u121-b13-0ubuntu1.16.04.2 openjdk-8-jre-headless 8u121-b13-0ubuntu1.16.04.2 openjdk-8-jre-jamvm 8u121-b13-0ubuntu1.16.04.2 openjdk-8-jre-zero 8u121-b13-0ubuntu1.16.04.2 This update uses a new upstream release, which includes additional bug fixes. After a standard system update you need to restart any Java applications or applets to make all the necessary changes. References: http://www.ubuntu.com/usn/usn-3179-1 CVE-2016-2183, CVE-2016-5546, CVE-2016-5547, CVE-2016-5548, CVE-2016-5549, CVE-2016-5552, CVE-2017-3231, CVE-2017-3241, CVE-2017-3252, CVE-2017-3253, CVE-2017-3261, CVE-2017-3272, CVE-2017-3289 Package Information: https://launchpad.net/ubuntu/+source/openjdk-8/8u121-b13-0ubuntu1.16.10.2 https://launchpad.net/ubuntu/+source/openjdk-8/8u121-b13-0ubuntu1.16.04.2 - --------------------------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. 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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 iQIVAwUBWIlbjIx+lLeg9Ub1AQhXaw//fUwFTT2Wsui9huuvjQ2LDdu/Wu7qTJYa OAeebeKEB0FTUSZeWlqHbCB1TGJvstOdxn9Fy91HiTRqaR+NgRq/5MAbb7iu0/hH igForHs7u5eQwqog11nhiJoSLOWRX1pCvN3rXfkb9cpNDXpyxj+/AxvhyteJd8SH XCREMNlvAbhTj8TIi+zzTCK1+KFY+1r7Y0NpY3Fqr0ljY5I+/bKhXmjOtiyMHOyu 32mB6AbF3Gc4uA7jfc4byut7uSrnXqirCbhusSQUj86PFzf5pCnJuXwg7l2gEkY7 rYafcLirFof16yr86E9wvTNUbJAiAtfEKA9Y6SjamylQ4VuYUv7k4lYKCoL/sh4V J+avTRnSpNP3uJn4qyUjpCxzpr8v6tf0LFQD5nPI5zxUojJTAFmv47CJLXH4aRkp eokYN/Va83q6gec7QDotbH/BfXY6iwzuo3IN7AhixGcaQNt7zFe7DgkXz6agvIcO Hde02hc6RcomN0Ac/XiNIlqOq9cgxLBG9hDNwPRKFzWI4BOsHvwR4ACoudPMoKYb sau6deypnzFovzKldUTvgiBOOwNG0mqhkt5iKUP1T7JBIDX9Kj0SFMFYKQxCasWK fTixZNnD1nMGiM8a0CZbVNIDXsp7IhuyMNmpVvmMeHIIxwNpJNiWmZMtbg7b8qUy hRvLdf36SVw= =x6Tc -----END PGP SIGNATURE-----