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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.1462 OpenJDK 8 vulnerabilities 14 May 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: openjdk-8-jre Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Access Privileged Data -- Remote/Unauthenticated Modify Arbitrary Files -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-2815 CVE-2018-2814 CVE-2018-2800 CVE-2018-2799 CVE-2018-2798 CVE-2018-2797 CVE-2018-2796 CVE-2018-2795 CVE-2018-2794 CVE-2018-2790 CVE-2018-2783 Reference: ASB-2018.0085 ESB-2018.1319 ESB-2018.1226 Original Bulletin: http://www.ubuntu.com/usn/usn-3644-1 - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3644-1 May 11, 2018 openjdk-8 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 17.10 - - Ubuntu 16.04 LTS Summary: Several security issues were fixed in OpenJDK 8. Software Description: - - openjdk-8: Open Source Java implementation Details: It was discovered that the Security component of OpenJDK did not correctly perform merging of multiple sections for the same file listed in JAR archive file manifests. An attacker could possibly use this to modify attributes in a manifest without invalidating the signature. (CVE-2018-2790) Francesco Palmarini, Marco Squarcina, Mauro Tempesta, and Riccardo Focardi discovered that the Security component of OpenJDK did not restrict which classes could be used when deserializing keys from the JCEKS key stores. An attacker could use this to specially craft a JCEKS key store to execute arbitrary code. (CVE-2018-2794) It was discovered that the Security component of OpenJDK in some situations did not properly limit the amount of memory allocated when performing deserialization. An attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-2795) It was discovered that the Concurrency component of OpenJDK in some situations did not properly limit the amount of memory allocated when performing deserialization. An attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-2796) It was discovered that the JMX component of OpenJDK in some situations did not properly limit the amount of memory allocated when performing deserialization. An attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-2797) It was discovered that the AWT component of OpenJDK in some situations did not properly limit the amount of memory allocated when performing deserialization. An attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-2798) It was discovered that the JAXP component of OpenJDK in some situations did not properly limit the amount of memory allocated when performing deserialization. An attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-2799) Moritz Bechler discovered that the RMI component of OpenJDK enabled HTTP transport for RMI servers by default. A remote attacker could use this to gain access to restricted services. (CVE-2018-2800) It was discovered that a vulnerability existed in the Hotspot component of OpenJDK affecting confidentiality, data integrity, and availability. An attacker could use this to specially craft an Java application that caused a denial of service or bypassed sandbox restrictions. (CVE-2018-2814) Apostolos Giannakidis discovered that the Serialization component of OpenJDK did not properly bound memory allocations in some situations. An attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-2815) David Benjamin discovered a vulnerability in the Security component of OpenJDK related to data integrity and confidentiality. A remote attacker could possibly use this to expose sensitive information. (CVE-2018-2783) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 17.10: openjdk-8-jre 8u171-b11-0ubuntu0.17.10.1 openjdk-8-jre-headless 8u171-b11-0ubuntu0.17.10.1 openjdk-8-jre-zero 8u171-b11-0ubuntu0.17.10.1 Ubuntu 16.04 LTS: openjdk-8-jre 8u171-b11-0ubuntu0.16.04.1 openjdk-8-jre-headless 8u171-b11-0ubuntu0.16.04.1 openjdk-8-jre-jamvm 8u171-b11-0ubuntu0.16.04.1 openjdk-8-jre-zero 8u171-b11-0ubuntu0.16.04.1 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: https://usn.ubuntu.com/usn/usn-3644-1 CVE-2018-2783, CVE-2018-2790, CVE-2018-2794, CVE-2018-2795, CVE-2018-2796, CVE-2018-2797, CVE-2018-2798, CVE-2018-2799, CVE-2018-2800, CVE-2018-2814, CVE-2018-2815 Package Information: https://launchpad.net/ubuntu/+source/openjdk-8/8u171-b11-0ubuntu0.17.10.1 https://launchpad.net/ubuntu/+source/openjdk-8/8u171-b11-0ubuntu0.16.04.1 - --------------------------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. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. 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. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBWvj9d4x+lLeg9Ub1AQhOYhAApmHTxEOv0/4TIvKdJRdeQMf83d7ZjP/l 9GjXbN/jmFYe3RVI3DGvJQwIgu6vDBSKfsCB85aBZKwY+6KFeBQO94nIAfwDZfk7 dxZOFf69u2LY6ZlAJ1nxnOPLgBai8k7PNGyRH1YF7utFgFh32zlbd+Mzoo870PHd zIc6ex8wOvmuE9/JzS7f4CQZMjgXWf8qvzRkMLLN+URHLqnv6FmTzsEVAEc0E+sa Xp+X73NzcTannRIU+8Yq/XF3urgHKiWxaXMPqao/1heZhKN0KVgfT3ty8sdH2lf1 giElrfKeD5fYAnFCEZEW6DJMVHox6DTL67wgBmkVOmV2hg4D9GH8taoOEY4v0VVZ 899CbSsYVew9ycmzq5DzQ/f4xOhjgLp/GSd1/WHdr+/hen+x7Q99QlvID/Wx3LcU zsEUL1qvOLZUgi9h7lYsTRHhZYNGYXm0UNS/dnqEhqUkIiH8eGQITyVL7BAunXfv ULdQDc0pE04Ma5Q4mU0VcdG4VVhujXo3PKSnK0SvM1jNTAQ4iUvTskC5USJPc1gL kGxChDBwK9LdBeNgcYkBRO1S/xsusRI5GUha/d4b449pXXgkZIYtWpfj9cSjXSL/ xdXqnqGOp6UDKb40Vac4YL/ipJoWOBi36HQ4P7eXPzxCZ7C9E4JLJK0KATFka7i5 6Q7frz2jLN8= =Fbam -----END PGP SIGNATURE-----