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Description
project
https://github.com/matthiaskramm/swftools
version:0.9.2
os info
Ubuntu20.04 TLS
poc
build
git clone https://github.com/matthiaskramm/swftools.git
cd swftools
./configure --disable-shared && make
./src/swfc 6_poc
ASAN Info
AddressSanitizer:DEADLYSIGNAL
=================================================================
==2665671==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x0000004de77a bp 0x7fffffffe300 sp 0x7fffffffe170 T0)
==2665671==The signal is caused by a WRITE memory access.
==2665671==Hint: address points to the zero page.
#0 0x4de77a in s_font /home/swftools/src/swfc.c:1630:14
#1 0x4f35c0 in c_font /home/swftools/src/swfc.c:3887:5
#2 0x4ee709 in parseArgumentsForCommand /home/swftools/src/swfc.c:4475:5
#3 0x4ee709 in main /home/swftools/src/swfc.c:4598:2
#4 0x7ffff7c29082 in __libc_start_main /build/glibc-SzIz7B/glibc-2.31/csu/../csu/libc-start.c:308:16
#5 0x41d63d in _start (/home/swftools/src/swfc+0x41d63d)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV /home/swftools/src/swfc.c:1630:14 in s_font
==2665671==ABORTING
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