SECURITY

USN-2923-1: BeanShell vulnerability Ubuntu Security Notice USN-2923-1 8th March, 2016 bsh vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 15.10 Ubuntu 14.04 LTS Ubuntu 12.04 LTS Summary BeanShell could be made to run programs if it processed specially crafted input. Software description bsh – Java scripting environment Details Alvaro Muñoz and Christian Schneider discovered that BeanShell incorrectlyhandled deserialization. A remote attacker could possibly use this issueto execute arbitrary code. Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 15.10: libbsh-java 2.0b4-15ubuntu0.15.10.1 bsh 2.0b4-15ubuntu0.15.10.1 Ubuntu 14.04 LTS: libbsh-java 2.0b4-15ubuntu0.14.04.1 bsh 2.0b4-15ubuntu0.14.04.1 Ubuntu 12.04 LTS: bsh 2.0b4-12ubuntu0.1 bsh-gcj 2.0b4-12ubuntu0.1 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. In general, a standard system update will make all the necessary changes. References CVE-2016-2510 Source: USN-2923-1: BeanShell vulnerability

USN-2922-1: Samba vulnerabilities Ubuntu Security Notice USN-2922-1 8th March, 2016 samba vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 15.10 Ubuntu 14.04 LTS Ubuntu 12.04 LTS Summary Several security issues were fixed in Samba. Software description samba – SMB/CIFS file, print, and login server for Unix Details Jeremy Allison discovered that Samba incorrectly handled ACLs on symlinkpaths. A remote attacker could use this issue to overwrite the ownership ofACLs using symlinks. (CVE-2015-7560) Garming Sam and Douglas Bagnall discovered that the Samba internal DNSserver incorrectly handled certain DNS TXT records. A remote attacker coulduse this issue to cause Samba to crash, resulting in a denial of service,or possibly obtain uninitialized memory contents. This issue only appliedto Ubuntu 14.04 LTS and Ubuntu 15.10. (CVE-2016-0771) It was discovered that the Samba Web Administration Tool (SWAT) wasvulnerable to clickjacking [ more… ]

USN-2904-1: Thunderbird vulnerabilities Ubuntu Security Notice USN-2904-1 8th March, 2016 thunderbird vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 15.10 Ubuntu 14.04 LTS Ubuntu 12.04 LTS Summary Several security issues were fixed in Thunderbird. Software description thunderbird – Mozilla Open Source mail and newsgroup client Details Karthikeyan Bhargavan and Gaetan Leurent discovered that NSS incorrectlyallowed MD5 to be used for TLS 1.2 connections. If a remote attacker wereable to perform a man-in-the-middle attack, this flaw could be exploited toview sensitive information. (CVE-2015-7575) Yves Younan discovered that graphite2 incorrectly handled certain malformedfonts. If a user were tricked into opening a specially crafted website in abrowsing context, an attacker could potentially exploit this to cause adenial of service via application crash, or execute arbitary code with theprivileges of the user invoking Thunderbird. (CVE-2016-1523) Bob Clary, Christian Holler, [ more… ]