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Out-of-Bounds Write issue can occur in function convert_32s_C1P1 (openjpeg-2.1.2/src/bin/jp2/convert.c:153) #872
There is an out-of-bound write issue can occur in function convert_32s_C1P1 (openjpeg-2.1.2/src/bin/jp2/convert.c:153)(Actually, other functions like covert__ will also trigger this problem).
Address Sanitizer Output
==126239==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60200000ef51 at pc 0x7ffff6ef6935 bp 0x7fffffff7d30 sp 0x7fffffff74d8
0x60200000ef51 is located 0 bytes to the right of 1-byte region [0x60200000ef50,0x60200000ef51)
SUMMARY: AddressSanitizer: heap-buffer-overflow ??:0 __asan_memcpy
Analysis and PoC
This attachment includes poc and analysis document.
name: bobb, chunibalon of VARAS@IIE