AddressSanitizer(简称ASan)是一个用于检测C/C++程序中内存错误的工具,能够高效地识别内存访问错误,如缓冲区溢出、使用释放后的内存、内存泄漏等。它通过修改程序代码和替换内存分配函数来检测各种内存访问错误,使用影子内存(shadow memory)来记录每个内存地址的访问状态,并在检测到错误时生成详细的错误报告。 dynamic-stack...
==1076795==ERROR: AddressSanitizer: dynamic-stack-buffer-overflow on address 0x7ffe4e6d9318 at pc 0x62c2018bcbcf bp 0x7ffe4e6d9230 sp 0x7ffe4e6d9220 WRITE of size 8 at 0x7ffe4e6d9318 thread T0 #0 0x62c2018bcbce in stack_left_limb /tmp/rbtree/rbtree.c:564 #1 0x62c2018beaf9...
take example code generate random strings and compile with sanitizers. $ gcc -fsanitize=address main.c # ./a.out === ==567==ERROR: AddressSanitizer: dynamic-stack-buffer-overflow on address 0x7ffe55e4a198 at pc 0x55b34322c058 bp 0x7ffe55e4a0e0 sp 0x7ffe55e4a0d8 WRITE of size 1...
With ASLR and NX turned on, the load base address of libc.so is random, and the attacker cannot directly execute malicious code by using the controllable memory address in the program. Take tamilctf2021_name as an example, the memory address mapping of its runtime is shown in Figure3. Th...
=== ==42==ERROR: AddressSanitizer: dynamic-stack-buffer-overflow on address 0x7ffc56ba144e at pc 0x00000031c726 bp 0x7ffc56ba13d0 sp 0x7ffc56ba0b90 READ of size 15 at 0x7ffc56ba144e thread T0 #6 0x7face5f830b2 (/lib/x86_64-linux-gnu/libc.so.6+0x270b2) Address 0x7ff...
=== ==42==ERROR: AddressSanitizer: dynamic-stack-buffer-overflow on address 0x7ffc56ba144e at pc 0x00000031c726 bp 0x7ffc56ba13d0 sp 0x7ffc56ba0b90 READ of size 15 at 0x7ffc56ba144e thread T0 #6 0x7face5f830b2 (/lib/x86_64-linux-gnu/libc.so.6+0x270b2) Address 0x7ff...