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Date: Tue, 13 Feb 2018 12:01:36 +0100
From: Hanno Böck <hanno@...eck.de>
To: oss-security@...ts.openwall.com
Subject: qpdf: multiple vulnerabilities before 7.0.0
Hi,
This is a bit older, but I'll share it anyway. A while ago I tested
qpdf with libfuzzer, all those issues have been fixed in 7.0.0 (latest
is 7.1.1).
Stack overflow due to endless recursion in
QPDFTokenizer::resolveLiteral()
https://github.com/qpdf/qpdf/issues/51
Another stack overflow / endless recursion in
QPDFWriter::enqueueObject()
https://github.com/qpdf/qpdf/issues/143
Stack out of bounds read in iterate_rc4()
https://github.com/qpdf/qpdf/issues/147
heap out of bounds read (large) in Pl_Buffer::write
https://github.com/qpdf/qpdf/issues/150
Hang due to a pdf xref loop:
https://github.com/qpdf/qpdf/issues/149
Background:
https://blog.fuzzing-project.org/59-Six-year-old-PDF-loop-bug-affects-most-major-implementations.html
A quick check with the latst 7.1.1 with libfuzzer and asan revealed no
further bugs.
--
Hanno Böck
https://hboeck.de/
mail/jabber: hanno@...eck.de
GPG: FE73757FA60E4E21B937579FA5880072BBB51E42
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