Preface: It’s always easy to forget things. Forget even your girlfriend’s birthday. So, whatever security alerts, after more than a year, become worthless. It seems nothing. Maybe not for you. But I totally agree. Background: If Android phone OS taken unofficial modified (ROOTED) . Users can install and run applications that can only be done…

Preface: A NUMA system is a computer platform that comprises multiple components or assemblies each of which may contain 0 or more CPUs, local memory, and/or IO buses. Background: On new design Systems servers running Linux, a set of the PCIe slots support a unique feature called 64-bit direct memory access (DMA). DMA improves I/O…

Preface: Top Programming Languages for Android App Development in 2023 · Most Popular Programming Languages for Android · Kotlin · Java · C# · C++/C · Python. What is C language use-after-free. Use-After-Free (UAF) is a vulnerability related to incorrect use of dynamic memory during program operation. If after freeing a memory location, a program…

Preface: Sandbox evasion techniques. Common evasion techniques include the use of specific assembly instructions, and looking for specific registry keys or file names. Background: iOS and iPadOS help ensure runtime security by using a “sandbox,” declared entitlements, and Address Space Layout Randomization (ASLR).All third-party apps are “sandboxed,” so they are restricted from accessing files stored…

Preface: When using the U-Boot UEFI implementation to boot the operating system the UEFI runtime stays in memory. Use-After-Free (UAF) is a vulnerability related to incorrect use of dynamic memory during program operation. If after freeing a memory location, a program does not clear the pointer to that memory, an attacker can use the error…

Preface: Back to forty years ago, computer trend in mainstream is command mode. When Microsoft windows GUI born, people favour Windows OS. As time goes by, because of Microsoft system vulnerability, people said I like Linux. As of today, from time-to-time you will heard Linux Kernel vulnerability occurs. Can you change to Microsoft windows now?…

Preface: Fundamentally, so called software application system is integrated with operating system, web server/server, database and application software program. If software application program design have relationship with web server bundle application framework. Such impact not only affect a single component. Background: VMware Carbon Black Cloud Endpoint™ Standard is a next-generation antivirus (NGAV) and endpoint detection…

Preface: Two different methods and names, but similar in function.AMD CPUs with four cores use simultaneous multithreading to provide eight threads, and most Intel CPUs with two cores use hyper-threading to provide four threads. Background: In IBM S390 system configuration. Use the smt= and nosmt kernel parameters to control multithreading.By default, Linux in LPAR mode…

Preface: iOS 16 is the sixteenth and current major release of the iOS mobile operating system developed by Apple for its iPhone line of products. It was announced at the company’s Worldwide Developers Conference (WWDC) on June 6, 2022, as the successor to iOS 15. Background: Use-after-free is still a common bug class because the…