Project: exiv2 (exiv2/exiv2), language: c++
Vulnerability instance: exiv2.cve-2017-14860
Sanitizer: address

================= Bug Report (1/1) ==================
## Source: Red Hat Bugzilla
## URL: https://bugzilla.redhat.com/show_bug.cgi?id=1494776
## Description:
Bugzilla ID: 1494776
Title: It is a heap-buffer-overflow in Exiv2::Jp2Image::readMetadata (jp2image.cpp:277)

Description
Liu Zhu 2017-09-23 01:39:03 UTC
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


Comments:
Comment 2
Liu Zhu 2017-09-23 05:15:31 UTC
./exiv2 -V
exiv2 0.26 001a00 (64 bit build)
Copyright (C) 2004-2017 Andreas Huggel.

---

Comment 3
Salvatore Bonaccorso 2017-09-28 11:53:46 UTC
This was assigned CVE-2017-14860.

Can you please report the issue upstream?

---

Comment 4
Dan Čermák 2017-10-19 21:39:05 UTC
The upstream issue is https://github.com/Exiv2/exiv2/issues/71. It has been fixed now on master and backported to 0.26.

---

Comment 6
Jan Grulich 2019-01-28 16:08:22 UTC
Fixed with exiv2-0.27.0-1.el7_6.

---

Comment 10
errata-xmlrpc 2019-08-06 12:46:58 UTC
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

Attachments:
Attachment 1329790: PoC File [Link: https://bugzilla.redhat.com/attachment.cgi?id=1329790]

Build script:
#!/bin/bash -eu
# Minimized build script with only core build commands
set -eu
mkdir -p build
cd build
cmake -DEXIV2_ENABLE_PNG=ON -DEXIV2_ENABLE_WEBREADY=ON -DEXIV2_ENABLE_CURL=OFF -DEXIV2_ENABLE_BMFF=ON -DEXIV2_TEAM_WARNINGS_AS_ERRORS=ON -DBUILD_SHARED_LIBS=OFF -DCMAKE_CXX_COMPILER="${CXX}" -DCMAKE_CXX_FLAGS="${CXXFLAGS}" -DEXIV2_BUILD_FUZZ_TESTS=ON -DEXIV2_TEAM_OSS_FUZZ=ON -DLIB_FUZZING_ENGINE="${LIB_FUZZING_ENGINE}" ..
make -j $(nproc)

Dockerfile:
FROM hwiwonlee/secb.base:latest
RUN apt-get update && apt-get install -y cmake make ccache python3 libexpat1-dev zlib1g-dev libssh-dev libcurl4-openssl-dev libxml2-utils
RUN git clone https://github.com/exiv2/exiv2 exiv2
RUN git -C exiv2 checkout fa449a4d2c58d63f0d75ff259f25683a98a44630
WORKDIR $SRC/exiv2
COPY build.sh $SRC/

Additional files: