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Security: Debian, FaceTime, QLineEdit, Roadmap to Securing Your Infrastructure

Submitted by Roy Schestowitz on Tuesday 29th of January 2019 10:35:54 AM Filed under
Security
  • https mirror

    Debian mirror servers are not run by Debian system admins but mirror admins kindly offer their servers and network capacities to our users. So, providing https support depends on them, we cannot force it.

  • There’s a Huge Bug in FaceTime. Disable It Now

    Anyone can call you on FaceTime and hear audio or see video from your phone before you answer. This bug is going viral on social media, and the only protection is disabling FaceTime.

  • Privacy: GUI applications leaking passwords

    Most of these applications use the Qt’s default text component – QLineEdit – when they need password input, because QLineEdit has a nice convenient mode where it masks the content of the text field – it shows asterisks or circles instead of the actual characters it contains.

    This is a nice way to block over-the-shoulder snooping, and is a common approach to do password entry even in non-Qt software.

    [...]

    When the QLineEdit is destroyed, so is the QString variable that stores the password. But, while the buffer that QString uses to store the data is freed/deleted, its contents remain in memory until some other dynamically allocated object is created in the same memory space and overwrites the data. This is because QString does not fill its buffer with zeroes on destruction. This means that the passwords remain in memory for much longer than needed (problem 2).

  • Roadmap to Securing Your Infrastructure: Intro

    As you’ll see throughout the year, I’m a huge fan of using open source tools to solve problems. You won’t hear me saying to go spend $10,000 to solve your problem. We’ll always look to open source solutions, when available. I enjoy using creativity to solve problems as well and would love to hear about problems you have creatively solved as well as open source products you use in your security practices.

»

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