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:


HiddenWall - Create Hidden Kernel Modules HiddenWall – Create Hidden Kernel Modules
HiddenWall is a Linux kernel module generator used to create hidden kernel modules to protect your server from attackers.
Anteater - CI/CD Security Gate Check Framework Anteater – CI/CD Security Gate Check Framework
Anteater is a CI/CD Security Gate Check Framework to prevent the unwanted merging of filenames, binaries, deprecated functions, staging variables and more.
Stardox - Github Stargazers Information Gathering Tool Stardox – Github Stargazers Information Gathering Tool
Stardox is a Python-based GitHub stargazers information gathering tool, it scrapes Github for information and displays them in a list tree view.
ZigDiggity - ZigBee Hacking Toolkit ZigDiggity – ZigBee Hacking Toolkit
ZigDiggity a ZigBee Hacking Toolkit is a Python-based IoT (Internet of Things) penetration testing framework targeting the ZigBee smart home protocol.
RandIP - Network Mapper To Find Servers RandIP – Network Mapper To Find Servers
RandIP is a nim-based network mapper application that generates random IP addresses and uses sockets to test whether the connection is valid or not with additional tests for Telnet and SSH.
Nipe - Make Tor Default Gateway For Network Nipe – Make Tor Default Gateway For Network
Nipe is a Perl script to make Tor default gateway for network, this script enables you to directly route all your traffic from your computer to the Tor network.


Comments are closed.