Poppler:stack buffer overflow in GfxImageColorMap::getGray

Description

Poppler is a PDF rendering library based on the xpdf-3.0 code base.

A stack buffer overflow was found in function GfxImageColorMap::getGray in GfxState.cc,which allows attackers to cause a denial of service via a crafted file.

#pdfimages $FILE out
==88072==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7fffef185eb1 at pc 0x0000004fd590 bp 0x7fffef185cd0 sp 0x7fffef185cc8
READ of size 1 at 0x7fffef185eb1 thread T0
    #0 0x4fd58f in GfxImageColorMap::getGray(unsigned char*, int*) /home/haojun/Downloads/testopensourcecode/poppler/poppler/GfxState.cc:6064
    #1 0x408407 in ImageOutputDev::writeImageFile(ImgWriter*, ImageOutputDev::ImageFormat, char const*, Stream*, int, int, GfxImageColorMap*) /home/haojun/Downloads/testopensourcecode/poppler/utils/ImageOutputDev.cc:386
    #2 0x40a557 in ImageOutputDev::writeImage(GfxState*, Object*, Stream*, int, int, GfxImageColorMap*, bool) /home/haojun/Downloads/testopensourcecode/poppler/utils/ImageOutputDev.cc:647
    #3 0x40a9d1 in ImageOutputDev::drawSoftMaskedImage(GfxState*, Object*, Stream*, int, int, GfxImageColorMap*, bool, Stream*, int, int, GfxImageColorMap*, bool) /home/haojun/Downloads/testopensourcecode/poppler/utils/ImageOutputDev.cc:703
    #4 0x4a7630 in Gfx::doImage(Object*, Stream*, bool) /home/haojun/Downloads/testopensourcecode/poppler/poppler/Gfx.cc:4702
    #5 0x4a445f in Gfx::opXObject(Object*, int) /home/haojun/Downloads/testopensourcecode/poppler/poppler/Gfx.cc:4208
    #6 0x47efd0 in Gfx::execOp(Object*, Object*, int) /home/haojun/Downloads/testopensourcecode/poppler/poppler/Gfx.cc:904
    #7 0x47e091 in Gfx::go(bool) /home/haojun/Downloads/testopensourcecode/poppler/poppler/Gfx.cc:763
    #8 0x47dbec in Gfx::display(Object*, bool) /home/haojun/Downloads/testopensourcecode/poppler/poppler/Gfx.cc:729
    #9 0x52c8f6 in Page::displaySlice(OutputDev*, double, double, int, bool, bool, int, int, int, int, bool, bool (*)(void*), void*, bool (*)(Annot*, void*), void*, bool) /home/haojun/Downloads/testopensourcecode/poppler/poppler/Page.cc:601
    #10 0x52be69 in Page::display(OutputDev*, double, double, int, bool, bool, bool, bool (*)(void*), void*, bool (*)(Annot*, void*), void*, bool) /home/haojun/Downloads/testopensourcecode/poppler/poppler/Page.cc:523
    #11 0x533614 in PDFDoc::displayPage(OutputDev*, int, double, double, int, bool, bool, bool, bool (*)(void*), void*, bool (*)(Annot*, void*), void*, bool) /home/haojun/Downloads/testopensourcecode/poppler/poppler/PDFDoc.cc:494
    #12 0x5336b9 in PDFDoc::displayPages(OutputDev*, int, int, double, double, int, bool, bool, bool, bool (*)(void*), void*, bool (*)(Annot*, void*), void*) /home/haojun/Downloads/testopensourcecode/poppler/poppler/PDFDoc.cc:510
    #13 0x406119 in main /home/haojun/Downloads/testopensourcecode/poppler/utils/pdfimages.cc:218
    #14 0x7fecc4ca0b34 in __libc_start_main (/lib64/libc.so.6+0x21b34)
    #15 0x4059a8  (/home/haojun/Downloads/testopensourcecode/poppler-build/bin/pdfimages+0x4059a8)

Address 0x7fffef185eb1 is located in stack of thread T0 at offset 33 in frame
    #0 0x407fa3 in ImageOutputDev::writeImageFile(ImgWriter*, ImageOutputDev::ImageFormat, char const*, Stream*, int, int, GfxImageColorMap*) /home/haojun/Downloads/testopensourcecode/poppler/utils/ImageOutputDev.cc:338

  This frame has 5 object(s):
    [32, 33) 'zero' <== Memory access at offset 33 overflows this variable
    [96, 100) 'gray'
    [160, 168) 'row'
    [224, 236) 'rgb'
    [288, 304) 'cmyk'
HINT: this may be a false positive if your program uses some custom stack unwind mechanism or swapcontext
      (longjmp and C++ exceptions *are* supported)
SUMMARY: AddressSanitizer: stack-buffer-overflow /home/haojun/Downloads/testopensourcecode/poppler/poppler/GfxState.cc:6064 in GfxImageColorMap::getGray(unsigned char*, int*)
Shadow bytes around the buggy address:
  0x10007de28b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x10007de28b90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x10007de28ba0: 00 00 f1 f1 f1 f1 00 00 00 00 00 00 00 00 00 00
  0x10007de28bb0: 00 00 00 00 00 00 f3 f3 f3 f3 00 00 00 00 00 00
  0x10007de28bc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x10007de28bd0: 00 00 f1 f1 f1 f1[01]f4 f4 f4 f2 f2 f2 f2 04 f4
  0x10007de28be0: f4 f4 f2 f2 f2 f2 00 f4 f4 f4 f2 f2 f2 f2 00 04
  0x10007de28bf0: f4 f4 f2 f2 f2 f2 00 00 f4 f4 f3 f3 f3 f3 00 00
  0x10007de28c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x10007de28c10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x10007de28c20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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
  Left alloca redzone:     ca
  Right alloca redzone:    cb
==88072==ABORTING

Affected version: 0.54.0
Fixed version:N/A
Commit fix:N/A
Credit: ADLab of Venustech.
CVE:N/A
Reproducer:
Timeline:
2017-04-24:bug discovered and reported to the upstream bugzilla
2017-06-25:blog post about the issue

Permalink:
http://somevulnsofadlab.blogspot.com/2017/06/popplerstack-buffer-overflow-in.html

评论

发表评论

此博客中的热门博文

qpdf:An infinite loop in libqpdf

Description QPDF  is a command-line program that does structural, content-preserving transformations on PDF files. An infinite loop was found in libqpdf, which allows attackers to cause a denial of service via a crafted file. #qpdf $FILE - ==10354== stack-overflow on address 0x7fffdaf46ef8 (pc 0x7fc995a7f020 bp 0x000000935760 sp 0x7fffdaf46e50 T0) #0 0x7fc995a7f01f in pcre_compile2 pcre_compile.c:7903 #1 0x8adacb in PCRE::PCRE(char const*, int) /home/haojun/Downloads/qpdf-master/libqpdf/PCRE.cc:144:18 #2 0x67d604 in QPDFTokenizer::resolveLiteral() /home/haojun/Downloads/qpdf-master/libqpdf/QPDFTokenizer.cc:62:10 #3 0x6835cb in QPDFTokenizer::presentCharacter(char) /home/haojun/Downloads/qpdf-master/libqpdf/QPDFTokenizer.cc:432:9 #4 0x688d3f in QPDFTokenizer::readToken(PointerHolder<InputSource>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /home/haojun/Downloads/qpdf-master/libqpdf/QP
阅读全文

qpdf:An infinite loop in libqpdf

Description QPDF  is a command-line program that does structural, content-preserving transformations on PDF files. An infinite loop was found in libqpdf, which allows attackers to cause a denial of service via a crafted file. #qpdf $FILE - ==52056== stack-overflow on address 0x7ffc5d511de0 (pc 0x0000005c262c bp 0x7ffc5d512a30 sp 0x7ffc5d511de0 T0) #0 0x5c262b in QPDF::resolveObjectsInStream(int) /home/haojun/Downloads/qpdf-master/libqpdf/QPDF.cc:1497 #1 0x5c13b6 in QPDF::resolve(int, int) /home/haojun/Downloads/qpdf-master/libqpdf/QPDF.cc:1480:6 #2 0x61e6c1 in QPDF::Resolver::resolve(QPDF*, int, int) /home/haojun/Downloads/qpdf-master/include/qpdf/QPDF.hh:520:19 #3 0x61e6c1 in QPDFObjectHandle::dereference() /home/haojun/Downloads/qpdf-master/libqpdf/QPDFObjectHandle.cc:1520 #4 0x621e00 in QPDFObjectHandle::isStream() /home/haojun/Downloads/qpdf-master/libqpdf/QPDFObjectHandle.cc:226:5 #5 0x5c27ce in QPDF::resolveObjectsInStream(int) /home/haojun/Downl
阅读全文

qpdf:An infinite loop in libqpdf

Description QPDF  is a command-line program that does structural, content-preserving transformations on PDF files. An infinite loop was found in libqpdf, which allows attackers to cause a denial of service via a crafted file. #qpdf $FILE - ==40517== stack-overflow on address 0x7ffd3e389d38 (pc 0x00000046b469 bp 0x7ffd3e38a5c0 sp 0x7ffd3e389d40 T0) #0 0x46b468 in memmove /home/haojun/Downloads/llvm-clang/llvm/projects/compiler-rt/lib/asan/../sanitizer_common/sanitizer_common_interceptors.inc:679 #1 0x7f866291704d /usr/include/bits/string3.h:57 #2 0x7f866291704d pcre_compile.c:3918 #3 0x7f866291704d pcre_compile.c:7273 #4 0x7f8662916e25 pcre_compile.c:6635 #5 0x7f8662916e25 pcre_compile.c:7273 #6 0x7f8662916e25 pcre_compile.c:6635 #7 0x7f8662916e25 pcre_compile.c:7273 #8 0x7f866291c5c5 in pcre_compile2 pcre_compile.c:8131 #9 0x8adacb in PCRE::PCRE(char const*, int) /home/haojun/Downloads/qpdf-master/libqpdf/PCRE.cc:144:18 #10 0
阅读全文