Linux - SecurityThis forum is for all security related questions.
Questions, tips, system compromises, firewalls, etc. are all included here.
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Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
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Mozilla Firefox / Thunderbird Multiple Vulnerabilities
A security issue and multiple vulnerabilities have been reported in Mozilla Firefox and Thunderbird, which can be exploited by malicious, local users to disclose certain sensitive information and by malicious people to bypass certain security restrictions, disclose certain sensitive information, and compromise a user's system.
Mozilla Firefox / Thunderbird / SeaMonkey XBL Binding Use-After-Free Vulnerability
A vulnerability has been reported in multiple Mozilla products, which can be exploited by malicious people to compromise a user's system.
The vulnerability is caused due to a use-after-free error in the "nsXBLDocumentInfo::ReadPrototypeBindings()" method when handling XBL bindings in a hash table and can be exploited to cause a cycle collector to call an invalid virtual function.
Successful exploitation may allow execution of arbitrary code.
Mozilla Firefox / Thunderbird / SeaMonkey Multiple Vulnerabilities
Multiple vulnerabilities have been reported in Mozilla Firefox, Thunderbird, and SeaMonkey, which can be exploited by malicious people to conduct cross-site scripting attacks, bypass certain security restrictions, disclose certain sensitive information, and compromise a user's system.
1) A use-after-free error exists within shlwapi.dll when closing a child window that uses the file open dialog.
2) An error when handling certain drag and drop actions can be exploited to conduct cross-site scripting attacks.
3) A use-after-free error exists within the "nsSMILTimeValueSpec::ConvertBetweenTimeContainers()" function when handling certain SVG animation.
4) An out-of-bounds read error in SVG filters can be exploited to disclose certain data.
5) An error when handling Content Security Policy headers can be exploited to conduct cross-site scripting attacks.
7) An unspecified error exists when accessing a keyframe's cssText after dynamic modification.
8) The window.fullScreen property does not properly enforce the mozRequestFullscreen policy, which can be exploited to bypass the policy and spoof certain content.
9) Multiple unspecified errors can be exploited to corrupt memory.
Successful exploitation of vulnerabilities #1, #3, #6, #7, and #9 may allow execution of arbitrary code.
Multiple vulnerabilities have been reported in Mozilla Firefox and Thunderbird, which can be exploited by malicious people to conduct cross-site scripting and spoofing attacks, disclose certain system and sensitive information, bypass certain security restrictions, and compromise a user's system.