=========================================================================== Ubuntu Security Notice USN-3058-1 September 14, 2016 oxide-qt vulnerabilities =========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS Summary: Several security issues were fixed in Oxide. Software Description: - oxide-qt: Web browser engine for Qt (QML plugin) Details: An issue was discovered in Blink involving the provisional URL for an initially empty document. An attacker could potentially exploit this to spoof the currently displayed URL. (CVE-2016-5141) A use-after-free was discovered in the WebCrypto implementation in Blink. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code. (CVE-2016-5142) It was discovered that the devtools subsystem in Blink mishandles various parameters. An attacker could exploit this to bypass intended access restrictions. (CVE-2016-5143, CVE-2016-5144) It was discovered that Blink does not ensure that a taint property is preserved after a structure-clone operation on an ImageBitmap object derived from a cross-origin image. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to bypass same origin restrictions. (CVE-2016-5145) Multiple security issues were discovered in Chromium. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to read uninitialized memory, cause a denial of service via application crash, or execute arbitrary code. (CVE-2016-5146, CVE-2016-5167) It was discovered that Blink mishandles deferred page loads. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to conduct cross-site scripting (XSS) attacks. (CVE-2016-5147) An issue was discovered in Blink related to widget updates. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to conduct cross-site scripting (XSS) attacks. (CVE-2016-5148) A use-after-free was discovered in Blink. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code. (CVE-2016-5150) A use-after-free was discovered in Blink. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code. (CVE-2016-5153) It was discovered that Chromium does not correctly validate access to the initial document. An attacker could potentially exploit this to spoof the currently displayed URL. (CVE-2016-5155) A use-after-free was discovered in the event bindings in Blink. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code. (CVE-2016-5156) A type confusion bug was discovered in Blink. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code. (CVE-2016-5161) An issue was discovered with the devtools implementation. An attacker could potentially exploit this to conduct cross-site scripting (XSS) attacks. (CVE-2016-5164) An issue was discovered with the devtools implementation. An attacker could potentially exploit this to conduct cross-site scripting (XSS) attacks. (CVE-2016-5165) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS: liboxideqtcore0 1.17.7-0ubuntu0.16.04.1 Ubuntu 14.04 LTS: liboxideqtcore0 1.17.7-0ubuntu0.14.04.1 In general, a standard system update will make all the necessary changes. References: http://www.ubuntu.com/usn/usn-3058-1 CVE-2016-5141, CVE-2016-5142, CVE-2016-5143, CVE-2016-5144, CVE-2016-5145, CVE-2016-5146, CVE-2016-5147, CVE-2016-5148, CVE-2016-5150, CVE-2016-5153, CVE-2016-5155, CVE-2016-5156, CVE-2016-5161, CVE-2016-5164, CVE-2016-5165, CVE-2016-5167 Package Information: https://launchpad.net/ubuntu/+source/oxide-qt/1.17.7-0ubuntu0.16.04.1 https://launchpad.net/ubuntu/+source/oxide-qt/1.17.7-0ubuntu0.14.04.1