Dennis Fisher

About

Dennis Fisher is a journalist with more than 13 years of experience covering information security.

Venafi to Launch Certificate Transparency Log

Three weeks after the first non-Google public log for Certificate Transparency was launched by DigiCert, officials at Venafi said that the company plans to debut its own public CT log. On Jan. 1 Google approved the use of DigiCert’s log, the first CT log that is independent and not operated by Google. As part of […]

Analysis of Flash Zero Day Shows Layers of Obfuscation

The Flash zero day that made its way into the Angler exploit kit was wrapped in multiple layers of obfuscation and has the ability to inject its malicious payload straight into users’ browsers. In the last week, since the news broke of the Adobe Flash zero-day flaw appearing in the Angler kit, security researchers have […]


Several new versions of PHP have been released, fixing a number of security vulnerabilities and other bugs in the popular scripting language. PHP 5.6.5 is the newest version of the language, and it has patches for a handful of vulnerabilities, including a use-after-free flaw that could lead to remote code execution in some cases. “Sapi/cgi/cgi_main.c in […]

Ubuntu has released a number of patches for security vulnerabilities in several versions of the OS, including some remote code execution flaws in Thunderbird, which is included with Ubuntu. Thunderbird is Mozilla’s email client, and the company recently fixed several memory corruption vulnerabilities, along with a cross-site request forgery bug and a flaw that could lead to […]