The Imperva HTTP/2 Vulnerability Report and NGINX

2016-08-06 KENNETH 0

The Imperva HTTP/2 Vulnerability Report and NGINX On Thursday, August 4th, Imperva – an Internet security company – announced four potential security vulnerabilities in the HTTP/2 protocol, and issued a detailed report evaluating a number of webservers against these vulnerabilities. NGINX 1.9.9 performed comparatively well in Imperva’s tests, and was not affected by three of the four potential vulnerabilities. Attempts to exploit the remaining vulnerability, “Slow Read”, caused a resource leakage in NGINX and ultimately allowed a denial-of-service attack against HTTP/2 services. Vulnerabilities exposed in leading webservers (from the Imperva report) The fault was reported to NGINX, and was resolved promptly in the NGINX 1.9.12 and NGINX Plus R9 releases. We are pleased to confirm that none of the current versions of NGINX – NGINX Plus, NGINX ‘mainline’, NGINX ‘stable’ – are vulnerable to any of the potential attacks described [ more… ]

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USN-3041-1: Oxide vulnerabilities

2016-08-05 KENNETH 0

USN-3041-1: Oxide vulnerabilities Ubuntu Security Notice USN-3041-1 5th August, 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 Multiple security issues were discovered in Chromium. If a user weretricked in to opening a specially crafted website, an attacker couldpotentially exploit these to read uninitialized memory, cause a denialof service (application crash) or execute arbitrary code. (CVE-2016-1705) It was discovered that the PPAPI implementation does not validate theorigin of IPC messages to the plugin broker process. A remote attackercould potentially exploit this to bypass sandbox protection mechanisms.(CVE-2016-1706) It was discovered that Blink does not prevent window creation by adeferred frame. A remote attacker could potentially exploit this to bypasssame origin [ more… ]

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USN-3044-1: Firefox vulnerabilities

2016-08-05 KENNETH 0

USN-3044-1: Firefox vulnerabilities Ubuntu Security Notice USN-3044-1 5th August, 2016 firefox vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 16.04 LTS Ubuntu 14.04 LTS Ubuntu 12.04 LTS Summary Firefox could be made to crash or run programs as your login if it opened a malicious website. Software description firefox – Mozilla Open Source web browser Details Gustavo Grieco discovered an out-of-bounds read during XML parsing insome circumstances. If a user were tricked in to opening a speciallycrafted website, an attacker could potentially exploit this to cause adenial of service via application crash, or obtain sensitive information.(CVE-2016-0718) Toni Huttunen discovered that once a favicon is requested from a site,the remote server can keep the network connection open even after the pageis closed. A remote attacked could potentially exploit this to trackusers, resulting in information disclosure. (CVE-2016-2830) [ more… ]