AddressSanitizer – A Fast Memory Error Detector


AddressSanitizer (aka ASan) is a very fast memory error detector for C/C++, Tthe average slowdown of the instrumented program is ~2x. The tool works on x86 Linux and Mac, and ARM Android. AddressSanitizer is based on compiler instrumentation and directly-mapped shadow memory.

AddressSanitizer - A Fast Memory Error Detector

The tool consists of a compiler instrumentation module (currently, an LLVM pass) and a run-time library which replaces the malloc function.

Features

It finds:

  • Use after free (dangling pointer dereference)
  • Heap buffer overflow
  • Stack buffer overflow
  • Global buffer overflow
  • Use after return
  • Initialization order bugs

Using AddressSanitize

In order to use AddressSanitizer you will need to compile and link your program using clang with the -fsanitize=address switch. To get a reasonable performance add -O1 or higher, and to get nicer stack traces in error messages add -fno-omit-frame-pointer.

Limitations

AddressSanitizer does not prevent any uninitialized memory reads, and only prevents some use-after-return bugs. It is also not capable of preventing all arbitrary memory corruption bugs. Arbitrary write bugs due to integer underflow/overflows (when the integer with undefined behaviour is used to calculate memory address offsets). Adjacent buffers in structs and classes are not protected from overflow, in part to prevent breaking backwards compatibility

You can get AddressSanitizer as a part of LLVM starting with version 3.1 and a part of GCC starting with version 4.8.

Or read more here.

Posted in: Exploits/Vulnerabilities, Hacking Tools, Secure Coding

,


Latest Posts:


tko-subs - Detect & Takeover Subdomains With Dead DNS Records tko-subs – Detect & Takeover Subdomains With Dead DNS Records
tko-subs is a tool that helps you to detect & takeover subdomains with dead DNS records, this could be dangling CNAMEs point to hosting services and more.
Arcane - Tool To Backdoor iOS Packages (iPhone ARM) Arcane – Tool To Backdoor iOS Packages (iPhone ARM)
Arcane is a simple script tool to backdoor iOS packages (iPhone ARM) and create the necessary resources for APT repositories.
SharpHose - Asynchronous Password Spraying Tool SharpHose – Asynchronous Password Spraying Tool
SharpHose is an asynchronous password spraying tool in C# for Windows environments that takes into consideration fine-grained password policies and can be run over Cobalt Strike's execute-assembly.
Axiom - Pen-Testing Server For Collecting Bug Bounties Axiom – Pen-Testing Server For Collecting Bug Bounties
Project Axiom is a set of utilities for managing a small dynamic infrastructure setup for bug bounty, basically a pen-testing server out of the box with 1-line.
Quasar RAT - Windows Remote Administration Tool Quasar RAT – Windows Remote Administration Tool
Quasar is a fast and light-weight Windows remote administration tool coded in C#. Used for user support through day-to-day administrative work to monitoring.
Pingcastle - Active Directory Security Assessment Tool Pingcastle – Active Directory Security Assessment Tool
PingCastle is a Active Directory Security Assessment Tool designed to quickly assess the Active Directory security level based on a risk and maturity framework.


Comments are closed.