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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.0453 OpenJDK 6 vulnerabilities 16 February 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: openjdk-6 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-2017-3272 CVE-2017-3261 CVE-2017-3253 CVE-2017-3252 CVE-2017-3241 CVE-2017-3231 CVE-2016-5552 CVE-2016-5548 CVE-2016-5546 CVE-2016-2183 Reference: ASB-2016.0095 ESB-2017.0433 ESB-2017.0432 ESB-2017.0431 Original Bulletin: http://www.ubuntu.com/usn/usn-3198-1 - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3198-1 February 16, 2017 openjdk-6 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 12.04 LTS Summary: Several security issues were fixed in OpenJDK 6. Software Description: - - openjdk-6: 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 covert timing channel vulnerabilities existed in the DSA implementations in OpenJDK. A remote attacker could use this to expose sensitive information. (CVE-2016-5548) 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) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 LTS: icedtea-6-jre-cacao 6b41-1.13.13-0ubuntu0.12.04.1 icedtea-6-jre-jamvm 6b41-1.13.13-0ubuntu0.12.04.1 openjdk-6-jdk 6b41-1.13.13-0ubuntu0.12.04.1 openjdk-6-jre 6b41-1.13.13-0ubuntu0.12.04.1 openjdk-6-jre-headless 6b41-1.13.13-0ubuntu0.12.04.1 openjdk-6-jre-lib 6b41-1.13.13-0ubuntu0.12.04.1 openjdk-6-jre-zero 6b41-1.13.13-0ubuntu0.12.04.1 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-3198-1 CVE-2016-2183, CVE-2016-5546, CVE-2016-5548, CVE-2016-5552, CVE-2017-3231, CVE-2017-3241, CVE-2017-3252, CVE-2017-3253, CVE-2017-3261, CVE-2017-3272 Package Information: https://launchpad.net/ubuntu/+source/openjdk-6/6b41-1.13.13-0ubuntu0.12.04.1 - --------------------------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: 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 iQIVAwUBWKU/1ox+lLeg9Ub1AQixQA/+Jj2T6XTyp5PmrsbnFYh8WeONqz3mJkVN vUApzYszXlyqdtPNJck7m1XRQDi6y3EQbD4yVS1+qe4tU9OXMx/IFdcS9/ZBrHEM dffs6T4peW75jhRJvyO24USn/HcPQX79ke9qRcdYwfW2D9KoGetgOLuqdb7niQNq kHrhYqo4DAmQJmmCGrX3C7X8rdDInt5BlwTDUZZ508S5PQdQuIXVNc+/1V7Rfft/ 84AHtn+E+Y6xnH7P34zfkaVHi1xGbWdb0I4n9r3+Zwbqlf7Ipiu5aVyNoVXxlNq2 3FEXcxHr3sSpski7BzrTGpUyBZ8ALirYq8KmZ9hrQ7u0NV7WLgCQ+z4IYKNLjlj3 Z+3mktHkTLMqwGB3N0PiRHwsQOYDMkvBREglzVPjbKPgSHnwRuhYW4zFDlEVCF59 1XjAtU3vib/W7K0vWP594tYJw7881/qcoyTyAk3CjK/6bfVaZ1EfZFmGGF6UzVCX YBZHKTYRcRKSjmoA9I3Z0/f+PUc5oPmImzf8c2XPX7W1H+BUGbujGxrtMIemKmqa 9r1ErRD+qYtaGqvqx/6t+JaagHJ1N3Z/myBR1c7+XNacK83tLc5bjm/RKSZGHzJD 3/y/or6CpBwonTmjH5auM2Bd9Jle/cVs1Aj5djJhQ7cv0I7XFUKWq/nGmDrfCw+G 0JnyC3/B7to= =Bi7r -----END PGP SIGNATURE-----