Articles by KENNETH

USN-3284-1: OpenVPN vulnerabilities Ubuntu Security Notice USN-3284-1 11th May, 2017 openvpn vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.04 Summary Several security issues were fixed in OpenVPN. Software description openvpn – virtual private network software Details It was discovered that OpenVPN improperly triggered an assert whenreceiving an oversized control packet in some situations. A remoteattacker could use this to cause a denial of service (server or clientcrash). (CVE-2017-7478) It was discovered that OpenVPN improperly triggered an assert when packetids rolled over. An authenticated remote attacker could use this to cause adenial of service (application crash). (CVE-2017-7479) Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 17.04: openvpn 2.4.0-4ubuntu1.2 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. In general, a standard system update will make all [ more… ]

USN-3275-1: OpenJDK 8 vulnerabilities Ubuntu Security Notice USN-3275-1 11th May, 2017 openjdk-8 vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.04 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 It was discovered that OpenJDK improperly re-used cached NTLMconnections in some situations. A remote attacker could possiblyuse this to cause a Java application to perform actions with thecredentials of a different user. (CVE-2017-3509) It was discovered that an untrusted library search path flaw existedin the Java Cryptography Extension (JCE) component of OpenJDK. Alocal attacker could possibly use this to gain the privileges of aJava application. (CVE-2017-3511) It was discovered that the Java API for XML Processing (JAXP) componentin OpenJDK did not properly enforce size limits when parsing XMLdocuments. An attacker could [ more… ]