Begin forwarded message:


Hi,

The attached file segfault.pdf will (well...) segfault podofopdfinfo.
Looks like a null pointer access.

The other file will expose a heap overflow in the function
ReadXRefSubsection. To see this one needs either address sanitizer or
valgrind.

I have attached both sample files and the output from address sanitizer.

These were found through fuzzing podofo with the tool american fuzzy
lop.

cu,
-- 
Hanno Böck
http://hboeck.de/

mail/jabber: ha...@hboeck.de
GPG: BBB51E42


-- 
Hanno Böck
http://hboeck.de/

mail/jabber: ha...@hboeck.de
GPG: BBB51E42

Attachment: heapoverflow-ReadXRefSubsection.pdf
Description: Adobe PDF document

Attachment: heapoverflow-ReadXRefSubsection.pdf.asan.txt.xz
Description: application/xz

Attachment: segfault.pdf
Description: Adobe PDF document

Attachment: segfault.pdf.asan.txt.xz
Description: application/xz

Attachment: pgp3Ku0J_9AkK.pgp
Description: OpenPGP digital signature

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