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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [pdfunite] crash due to a recursive call of two functions that exhausts the call stack"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101209">101209</a>
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<th>Summary</th>
<td>[pdfunite] crash due to a recursive call of two functions that exhausts the call stack
</td>
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<th>Product</th>
<td>poppler
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>utils
</td>
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<th>Assignee</th>
<td>poppler-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>pengjiaqi@iie.ac.cn
</td>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=131534" name="attach_131534" title="analysis_and_PoC">attachment 131534</a> <a href="attachment.cgi?id=131534&action=edit" title="analysis_and_PoC">[details]</a></span>
analysis_and_PoC
## Summary
pdfunite util in poppler-0.55.0 will crash when parsing a crafted pdf file,
because the program fall into a recursive and interactive call of two functions
and eventually exhaust the stack space.
## Reproduce
pengjiaqi@ubuntu:~/Documents/crash/poppler-0.55.0ild-gcc/utils$ ./pdfunite
PoC.pdf 1.pdf
Segmentation fault
## Analysis
Due to the analysis is a little complex, I have uploaded it as an attachment,
along with a PoC. In order to avoid disclosing it before patch is released, I
have encrypted it. The developers can communicate with me to get the password.
## Author
name: Jiaqi Peng
email: <a href="mailto:pjqruc@gmail.com">pjqruc@gmail.com</a></pre>
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