Hide Forgot
Created attachment 1329790 [details] PoC File ./exiv2 003-heap-buffer-over ================================================================= ==34506==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61200000be69 at pc 0x7fa4854c3935 bp 0x7ffdf8967ef0 sp 0x7ffdf8967698 READ of size 808464432 at 0x61200000be69 thread T0 #0 0x7fa4854c3934 in __asan_memcpy (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x8c934) #1 0x7fa484d5f07c in Exiv2::Jp2Image::readMetadata() /root/fuzzing/exiv2-trunk/src/jp2image.cpp:277 #2 0x43ab02 in Action::Print::printSummary() /root/fuzzing/exiv2-trunk/src/actions.cpp:289 #3 0x43a1af in Action::Print::run(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /root/fuzzing/exiv2-trunk/src/actions.cpp:244 #4 0x422129 in main /root/fuzzing/exiv2-trunk/src/exiv2.cpp:170 #5 0x7fa4840a382f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f) #6 0x421af8 in _start (/usr/local/exiv2_ASAN/bin/exiv2+0x421af8) 0x61200000be69 is located 0 bytes to the right of 297-byte region [0x61200000bd40,0x61200000be69) allocated by thread T0 here: #0 0x7fa4854d06b2 in operator new[](unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x996b2) #1 0x454805 in Exiv2::DataBuf::DataBuf(long) /root/fuzzing/exiv2-trunk/include/exiv2/types.hpp:204 #2 0x7fa484d5ef9a in Exiv2::Jp2Image::readMetadata() /root/fuzzing/exiv2-trunk/src/jp2image.cpp:273 #3 0x43ab02 in Action::Print::printSummary() /root/fuzzing/exiv2-trunk/src/actions.cpp:289 #4 0x43a1af in Action::Print::run(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /root/fuzzing/exiv2-trunk/src/actions.cpp:244 #5 0x422129 in main /root/fuzzing/exiv2-trunk/src/exiv2.cpp:170 #6 0x7fa4840a382f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f) SUMMARY: AddressSanitizer: heap-buffer-overflow ??:0 __asan_memcpy Shadow bytes around the buggy address: 0x0c247fff9770: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c247fff9780: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c247fff9790: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c247fff97a0: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00 0x0c247fff97b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 =>0x0c247fff97c0: 00 00 00 00 00 00 00 00 00 00 00 00 00[01]fa fa 0x0c247fff97d0: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00 0x0c247fff97e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c247fff97f0: 00 00 00 00 00 00 00 00 00 00 00 01 fa fa fa fa 0x0c247fff9800: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c247fff9810: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 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 Heap right redzone: fb Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack partial redzone: f4 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 ==34506==ABORTING
./exiv2 -V exiv2 0.26 001a00 (64 bit build) Copyright (C) 2004-2017 Andreas Huggel.
This was assigned CVE-2017-14860. Can you please report the issue upstream?
The upstream issue is https://github.com/Exiv2/exiv2/issues/71. It has been fixed now on master and backported to 0.26.
Fixed with exiv2-0.27.0-1.el7_6.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2019:2101