68 lines
No EOL
3.3 KiB
Text
68 lines
No EOL
3.3 KiB
Text
# Exploit Title: PDFunite Malformed pdf buffer overflow
|
|
# Date: 17 April 2018
|
|
# Exploit Author: Hamm3r.py
|
|
# Vendor Homepage: https://launchpad.net/ubuntu/artful/+package/poppler-utils
|
|
# Software Link: https://launchpad.net/ubuntu/+source/poppler/0.57.0-2ubuntu4.2
|
|
# Version: 0.41.0
|
|
# Tested on: Ubuntu
|
|
# CVE :
|
|
|
|
pdfunite is a part of poppler package in ubuntu. pdfunite is prone to a
|
|
local bufferoverflow when a malformed pdf is used to unite with another
|
|
pdf.
|
|
Following is the gdb stack trace:
|
|
|
|
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
|
|
|
|
Program received signal SIGSEGV, Segmentation fault.
|
|
0x00007ffff7abf948 in XRef::getEntry(int, bool) () from
|
|
/usr/lib/x86_64-linux-gnu/libpoppler.so.58
|
|
#0 0x00007ffff7abf948 in XRef::getEntry(int, bool) () from
|
|
/usr/lib/x86_64-linux-gnu/libpoppler.so.58
|
|
#1 0x00007ffff7aa8867 in PDFDoc::markObject(Object*, XRef*, XRef*,
|
|
unsigned int, int, int, std::set<Dict*, std::less<Dict*>,
|
|
std::allocator<Dict*> >*) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.58
|
|
#2 0x00007ffff7aa85a3 in PDFDoc::markDictionnary(Dict*, XRef*, XRef*,
|
|
unsigned int, int, int, std::set<Dict*, std::less<Dict*>,
|
|
std::allocator<Dict*> >*) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.58
|
|
#3 0x00007ffff7aa884c in PDFDoc::markObject(Object*, XRef*, XRef*,
|
|
unsigned int, int, int, std::set<Dict*, std::less<Dict*>,
|
|
std::allocator<Dict*> >*) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.58
|
|
#4 0x00007ffff7aa8971 in PDFDoc::markObject(Object*, XRef*, XRef*,
|
|
unsigned int, int, int, std::set<Dict*, std::less<Dict*>,
|
|
std::allocator<Dict*> >*) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.58
|
|
#5 0x00007ffff7aa85a3 in PDFDoc::markDictionnary(Dict*, XRef*, XRef*,
|
|
unsigned int, int, int, std::set<Dict*, std::less<Dict*>,
|
|
std::allocator<Dict*> >*) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.58
|
|
#6 0x00007ffff7aa884c in PDFDoc::markObject(Object*, XRef*, XRef*,
|
|
unsigned int, int, int, std::set<Dict*, std::less<Dict*>,
|
|
std::allocator<Dict*> >*) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.58
|
|
#7 0x00007ffff7aa8971 in PDFDoc::markObject(Object*, XRef*, XRef*,
|
|
unsigned int, int, int, std::set<Dict*, std::less<Dict*>,
|
|
std::allocator<Dict*> >*) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.58
|
|
#8 0x00007ffff7aa85a3 in PDFDoc::markDictionnary(Dict*, XRef*, XRef*,
|
|
unsigned int, int, int, std::set<Dict*, std::less<Dict*>,
|
|
std::allocator<Dict*> >*) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.58
|
|
#9 0x00007ffff7aa884c in PDFDoc::markObject(Object*, XRef*, XRef*,
|
|
unsigned int, int, int, std::set<Dict*, std::less<Dict*>,
|
|
std::allocator<Dict*> >*) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.58
|
|
#10 0x00007ffff7aa8bae in PDFDoc::markPageObjects(Dict*, XRef*, XRef*,
|
|
unsigned int, int, int, std::set<Dict*, std::less<Dict*>,
|
|
std::allocator<Dict*> >*) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.58
|
|
#11 0x000000000040271a in ?? ()
|
|
#12 0x00007ffff722d830 in __libc_start_main (main=0x401b20, argc=4,
|
|
argv=0x7fffffffe0b8, init=<optimized out>, fini=<optimized out>,
|
|
rtld_fini=<optimized out>, stack_end=0x7fffffffe0a8) at
|
|
../csu/libc-start.c:291
|
|
#13 0x0000000000403179 in ?? ()
|
|
|
|
|
|
$ pdfunite -v
|
|
pdfunite version 0.41.0
|
|
|
|
|
|
#This issue is identified by Hamm3r.py, a general purpose fuzzer!
|
|
|
|
|
|
Proof of Concept:
|
|
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/44490.zip |