Bug 1532381

Summary: integer overflow in PdfObjectStreamParserObject::ReadObjectsFromStream (src/base/PdfObjectStreamParserObject.cpp)
Product: [Fedora] Fedora EPEL Reporter: probefuzzer <probefuzzer>
Component: podofoAssignee: Dan HorĂ¡k <dan>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: unspecified    
Version: epel7CC: carnil, dan, manisandro
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Description Flags
POC for podofo integer overflow issue none

Description probefuzzer 2018-01-08 20:33:06 UTC
Created attachment 1378729 [details]
POC for podofo integer overflow issue

on 0.9.5 (the latest version): 
there is a signed integer overflow in the PdfObjectStreamParserObject::ReadObjectsFromStream function (src/base/PdfObjectStreamParserObject.cpp), which can cause denial of service via a crafted pdf file.

src/base/PdfObjectStreamParserObject.cpp:99:30: runtime error: signed integer overflow: 94 + 9223372036854775807 cannot be represented in type 'long int'

To reproduce the issue, compile libming with UBSAN "-fsanitize=undefined",
then execute: podofoimgextract $POC OUTPUT_DIR

The POC is attached.

Comment 1 Salvatore Bonaccorso 2018-01-09 09:47:14 UTC
CVE-2018-5309 was assigned for this issue.

Can you notify upstream about this issue?

Comment 2 probefuzzer 2018-01-11 21:47:08 UTC
(In reply to Salvatore Bonaccorso from comment #1)
> CVE-2018-5309 was assigned for this issue.
> Can you notify upstream about this issue?

Thanks for your work. 
We have notified podofo developers via mailing list.