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[Heewon Park <2025032@xxxxxxxxxxxxxxxxxx>]

The vulnerability was published as CVE-2024-25442.

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2024-25442

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https://bugs.launchpad.net/bugs/2025032

Title:
  Heap-buffer-overflow when adding an image in
  HuginBase::PanoramaMemento::loadPTScript

Status in Hugin:
  Fix Released

Bug description:
  Hi there

  We want to share that the latest version (2022.0.0) of pto_merge
  causes heap-buffer-overflow.

  The invalid memory allocation may attribute to the excessive values in
  function parameters to the HuginBase::PanoramaMemento::loadPTScript.

  Here is the output of program with address sanitizer attached.

  ### Bug Report
  =================================================================
  ==3616==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x602000003800 at pc 0x7f3098044709 bp 0x7ffe486d8200 sp 0x7ffe486d81f0
  READ of size 8 at 0x602000003800 thread T0
      #0 0x7f3098044708 in HuginBase::PanoramaMemento::loadPTScript(std::istream&, int&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /home/ubuntu/targets/hugin-2022.0.0_original/src/hugin_base/panodata/image_variables.h:100
      #1 0x7f3098052618 in HuginBase::Panorama::readData(std::istream&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >) /home/ubuntu/targets/hugin-2022.0.0_original/src/hugin_base/panodata/Panorama.cpp:2178
      #2 0x55cfccdd8975 in main /home/ubuntu/targets/hugin-2022.0.0_original/src/tools/pto_merge.cpp:99
      #3 0x7f3095746082 in __libc_start_main ../csu/libc-start.c:308
      #4 0x55cfccdd9c5d in _start (/home/ubuntu/targets/hugin-2022.0.0_original/build/src/tools/pto_merge+0xbc5d)

  0x602000003800 is located 0 bytes to the right of 16-byte region [0x6020000037f0,0x602000003800)
  allocated by thread T0 here:
      #0 0x7f30984f0587 in operator new(unsigned long) ../../../../src/libsanitizer/asan/asan_new_delete.cc:104
      #1 0x7f309802e9a9 in __gnu_cxx::new_allocator<HuginBase::SrcPanoImage*>::allocate(unsigned long, void const*) /usr/include/c++/9/ext/new_allocator.h:114
      #2 0x7f309802e9a9 in std::allocator_traits<std::allocator<HuginBase::SrcPanoImage*> >::allocate(std::allocator<HuginBase::SrcPanoImage*>&, unsigned long) /usr/include/c++/9/bits/alloc_traits.h:443
      #3 0x7f309802e9a9 in std::_Vector_base<HuginBase::SrcPanoImage*, std::allocator<HuginBase::SrcPanoImage*> >::_M_allocate(unsigned long) /usr/include/c++/9/bits/stl_vector.h:343
      #4 0x7f309802e9a9 in void std::vector<HuginBase::SrcPanoImage*, std::allocator<HuginBase::SrcPanoImage*> >::_M_realloc_insert<HuginBase::SrcPanoImage* const&>(__gnu_cxx::__normal_iterator<HuginBase::SrcPanoImage**, std::vector<HuginBase::SrcPanoImage*, std::allocator<HuginBase::SrcPanoImage*> > >, HuginBase::SrcPanoImage* const&) /usr/include/c++/9/bits/vector.tcc:440
      #5 0x7f309802e9a9 in std::vector<HuginBase::SrcPanoImage*, std::allocator<HuginBase::SrcPanoImage*> >::push_back(HuginBase::SrcPanoImage* const&) /usr/include/c++/9/bits/stl_vector.h:1195
      #6 0x7f309802e9a9 in HuginBase::PanoramaMemento::loadPTScript(std::istream&, int&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /home/ubuntu/targets/hugin-2022.0.0_original/src/hugin_base/panodata/Panorama.cpp:3130
      #7 0x7f3098052618 in HuginBase::Panorama::readData(std::istream&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >) /home/ubuntu/targets/hugin-2022.0.0_original/src/hugin_base/panodata/Panorama.cpp:2178
      #8 0x55cfccdd8975 in main /home/ubuntu/targets/hugin-2022.0.0_original/src/tools/pto_merge.cpp:99
      #9 0x7f3095746082 in __libc_start_main ../csu/libc-start.c:308

  SUMMARY: AddressSanitizer: heap-buffer-overflow /home/ubuntu/targets/hugin-2022.0.0_original/src/hugin_base/panodata/image_variables.h:100 in HuginBase::PanoramaMemento::loadPTScript(std::istream&, int&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)
  Shadow bytes around the buggy address:
    0x0c047fff86b0: fa fa 00 00 fa fa 00 00 fa fa 04 fa fa fa 00 00
    0x0c047fff86c0: fa fa 01 fa fa fa 04 fa fa fa 00 00 fa fa 00 fa
    0x0c047fff86d0: fa fa 00 fa fa fa 00 fa fa fa 00 fa fa fa 00 fa
    0x0c047fff86e0: fa fa 00 fa fa fa 00 fa fa fa 00 fa fa fa 04 fa
    0x0c047fff86f0: fa fa 00 fa fa fa 00 fa fa fa 01 fa fa fa 00 00
  =>0x0c047fff8700:[fa]fa fd fa fa fa 00 fa fa fa 04 fa fa fa 00 fa
    0x0c047fff8710: fa fa 00 fa fa fa 04 fa fa fa 00 fa fa fa 00 fa
    0x0c047fff8720: fa fa 00 fa fa fa 00 fa fa fa 00 fa fa fa 00 fa
    0x0c047fff8730: fa fa 00 fa fa fa 00 fa fa fa 00 fa fa fa 00 fa
    0x0c047fff8740: fa fa 00 fa fa fa 00 fa fa fa 00 fa fa fa 00 00
    0x0c047fff8750: fa fa 00 00 fa fa 04 fa fa fa 00 00 fa fa 01 fa
  Shadow byte legend (one shadow byte represents 8 application bytes):
    Addressable: 00
    Partially addressable: 01 02 03 04 05 06 07
    Heap left redzone: fa
    Freed heap region: fd
    Stack left redzone: f1
    Stack mid redzone: f2
    Stack right redzone: f3
    Stack after return: f5
    Stack use after scope: f8
    Global redzone: f9
    Global init order: f6
    Poisoned by user: f7
    Container overflow: fc
    Array cookie: ac
    Intra object redzone: bb
    ASan internal: fe
    Left alloca redzone: ca
    Right alloca redzone: cb
    Shadow gap: cc
  ==3616==ABORTING

  ### Envionment
  OS: Ubuntu 20.04.5 LTS x86_64
  Release: hugin 2022.0.0
  Program: pto_merge
  libhuginbase: 2020.0.0 (retrieved and compiled from source code)
  libpano13: 2.9.19
  To reproduce the problem, we need to build hugin:
  sudo cmake -DCMAKE_C_FLAGS="-g" -DCMAKE_CXX_FLAGS="-g" ..

  
  ### How to reproduce
  $ pto_merge poc-file *.jpg
  (*.jpg any name of jpg file including asterisk(*))
  poc-file is attached.

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