SECURITY

USN-4064-1: Thunderbird vulnerabilities thunderbird vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 19.04 Ubuntu 18.10 Ubuntu 18.04 LTS Ubuntu 16.04 LTS Summary Several security issues were fixed in Thunderbird. Software Description thunderbird – Mozilla Open Source mail and newsgroup client Details A sandbox escape was discovered in Thunderbird. If a user were tricked in to installing a malicious language pack, an attacker could exploit this to gain additional privileges. (CVE-2019-9811) Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, bypass same origin restrictions, conduct cross-site scripting (XSS) attacks, spoof origin attributes, or execute arbitrary code. (CVE-2019-11709, CVE-2019-11711, CVE-2019-11712, CVE-2019-11713, CVE-2019-11715, CVE-2019-11717) It was discovered that NSS incorrectly handled importing [ more… ]

USN-4063-1: LibreOffice vulnerabilities libreoffice vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 19.04 Ubuntu 18.04 LTS Ubuntu 16.04 LTS Summary Several security issues were fixed in LibreOffice. Software Description libreoffice – Office productivity suite Details Nils Emmerich discovered that LibreOffice incorrectly handled LibreLogo scripts. If a user were tricked into opening a specially crafted document, a remote attacker could cause LibreOffice to execute arbitrary code. (CVE-2019-9848) Matei "Mal" Badanoiu discovered that LibreOffice incorrectly handled stealth mode. Contrary to expectations, bullet graphics could be retrieved from remote locations when running in stealth mode. (CVE-2019-9849) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 19.04 libreoffice-core – 1:6.2.5-0ubuntu0.19.04.1 Ubuntu 18.04 LTS libreoffice-core – 1:6.0.7-0ubuntu0.18.04.8 Ubuntu 16.04 LTS libreoffice-core – 1:5.1.6~rc2-0ubuntu1~xenial8 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. [ more… ]

USN-4059-2: Squid vulnerabilities squid3 vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 12.04 ESM Summary Several security issues were fixed in Squid. Software Description squid3 – Web proxy cache server Details USN-4059-1 and USN-3557-1 fixed several vulnerabilities in Squid. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: Louis Dion-Marcil discovered that Squid incorrectly handled certain Edge Side Includes (ESI) responses. A malicious remote server could possibly cause Squid to crash, resulting in a denial of service. (CVE-2018-1000024) Louis Dion-Marcil discovered that Squid incorrectly handled certain Edge Side Includes (ESI) responses. A malicious remote server could possibly cause Squid to crash, resulting in a denial of service. (CVE-2018-1000027) It was discovered that Squid incorrectly handled the cachemgr.cgi web module. A remote attacker could possibly use this issue to conduct cross-site scripting [ more… ]