Source: http://bugzilla.maptools.org/show_bug.cgi?id=2706 Triggered by “./tiff2ps $POC” or “./tiff2pdf $POC” Triggered by “./tiff2ps $POC” or “./tiff2pdf $POC” The asan debug information is below: $./tiff2ps $POC ================================================================= ==26627==ERROR: LeakSanitizer: detected memory leaks Direct leak of 1792 byte(s) in 7 object(s) allocated from: #0 0x7f7c4f1a19aa in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x989aa) #1 0x7f7c4dca72fd (/usr/lib/x86_64-linux-gnu/libjbig.so.0+0x12fd) #2 0x3ea () Indirect leak of 170491316224 byte(s) in 223 object(s) allocated from: #0 0x7f7c4f1a19aa in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x989aa) #1 0x7f7c4dca72fd (/usr/lib/x86_64-linux-gnu/libjbig.so.0+0x12fd) #2 0x3ea () SUMMARY: AddressSanitizer: 170491318016 byte(s) leaked in 230 allocation(s). Affected version: <=the Latest version (4.0.8) Credits: This vulnerability is detected by team OWL337, with our custom fuzzer coll AFL. Please contact ganshuitao@gmail.com and chaoz@tsinghua.edu.cn if you need more info about the team, the tool or the vulnerability. Proof of Concept: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/42300.zip