<div id="origbody"><div style="background: #f2f2f2;"> </div><div style="box-sizing: border-box; line-height: 1.42857; margin-right: 0px; margin-bottom: 16px; margin-left: 0px; color: rgb(46, 64, 94); font-family: Roboto, "PingFang SC", "Noto Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;">when we do poppler fuzzer fusiontest-testcase-pdf_draw_fuzzer-202110250015 and fusiontest-testcase-pdf_draw_fuzzer-202110250016，we find cairo have <span style="color: rgb(64, 72, 91); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Liberation Sans", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Wenquanyi Micro Hei", "WenQuanYi Zen Hei", "ST Heiti", SimHei, SimSun, "WenQuanYi Zen Hei Sharp", sans-serif;">heap buffer overflow, and we put bugfix-fix-heap-buffer-overflow-in-cairo_cff_parse_charstring.patch</div><div style="box-sizing: border-box; line-height: 1.42857; margin-right: 0px; margin-bottom: 16px; margin-left: 0px; color: rgb(46, 64, 94); font-family: Roboto, "PingFang SC", "Noto Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;"><p style="box-sizing: border-box; margin-right: 0em; margin-bottom: 16px; margin-left: 0em; line-height: 1.6; word-break: break-word; color: rgb(64, 72, 91); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Liberation Sans", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Wenquanyi Micro Hei", "WenQuanYi Zen Hei", "ST Heiti", SimHei, SimSun, "WenQuanYi Zen Hei Sharp", sans-serif;">==445393==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x604000009d32 at pc 0x00000124ec5c bp 0x7fff520a9e00 sp 0x7fff520a9df8 READ of size 1 at 0x604000009d32 thread T0 #0 0x124ec5b in get_unaligned_be32 /src/cairo/_builddir/../src/cairoint.h:257:48 #1 0x124e7e8 in _jpx_next_box /src/cairo/_builddir/../src/cairo-image-info.c:167:16 #2 0x124e856 in _jpx_find_box /src/cairo/_builddir/../src/cairo-image-info.c:196:6 #3 0x124e69a in _cairo_image_info_get_jpx_info /src/cairo/_builddir/../src/cairo-image-info.c:233:9 #4 0x11f1c2a in _cairo_pdf_surface_emit_jpx_image /src/cairo/_builddir/../src/cairo-pdf-surface.c:3329:14 #5 0x11e25c2 in _cairo_pdf_surface_emit_surface /src/cairo/_builddir/../src/cairo-pdf-surface.c:3753:11 #6 0x11e7e65 in _cairo_pdf_surface_add_source_surface /src/cairo/_builddir/../src/cairo-pdf-surface.c:1735:14 #7 0x11e5d51 in _cairo_pdf_surface_paint_surface_pattern /src/cairo/_builddir/../src/cairo-pdf-surface.c:5023:11 #8 0x11e5418 in _cairo_pdf_surface_paint_pattern /src/cairo/_builddir/../src/cairo-pdf-surface.c:5166:9 #9 0x11db7cc in _cairo_pdf_surface_paint /src/cairo/_builddir/../src/cairo-pdf-surface.c:7988:11 #10 0x11a6f6c in _cairo_surface_paint /src/cairo/_builddir/../src/cairo-surface.c:2199:14 #11 0x11a12d7 in _cairo_surface_wrapper_paint /src/cairo/_builddir/../src/cairo-surface-wrapper.c:162:14 #12 0x11817de in _cairo_recording_surface_replay_internal /src/cairo/_builddir/../src/cairo-recording-surface.c:1862:15 #13 0x11834f0 in _cairo_recording_surface_replay_region /src/cairo/_builddir/../src/cairo-recording-surface.c:2235:12 #14 0x126ea1c in _paint_page /src/cairo/_builddir/../src/cairo-paginated-surface.c:469:11 #15 0x126d9be in _cairo_paginated_surface_show_page /src/cairo/_builddir/../src/cairo-paginated-surface.c:583:14 #16 0x11acadf in cairo_surface_show_page /src/cairo/_builddir/../src/cairo-surface.c:2506:40 #17 0x6a33f0 in LLVMFuzzerTestOneInput /src/poppler/glib/tests/fuzzing/pdf_draw_fuzzer.cc:66:9 #18 0x5a91d3 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:599:15 #19 0x594942 in fuzzer::RunOneTest(fuzzer::Fuzzer*, char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:323:6 #20 0x59a5e6 in fuzzer::FuzzerDriver(int*, char***, int ()(unsigned char const, unsigned long)) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:856:9 #21 0x5c3af2 in main /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerMain.cpp:20:10 #22 0x7f698d26bb26 in __libc_start_main (/lib64/libc.so.6+0x25b26) #23 0x5707f9 in _start (/root/oss-fuzz/build/out/poppler/pdf_draw_fuzzer+0x5707f9)<p style="box-sizing: border-box; margin-right: 0em; margin-bottom: 16px; margin-left: 0em; line-height: 1.6; word-break: break-word; color: rgb(64, 72, 91); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Liberation Sans", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Wenquanyi Micro Hei", "WenQuanYi Zen Hei", "ST Heiti", SimHei, SimSun, "WenQuanYi Zen Hei Sharp", sans-serif;">0x604000009d32 is located 0 bytes to the right of 34-byte region [0x604000009d10,0x604000009d32) allocated by thread T0 here: #0 0x66fefd in malloc /src/llvm-project/compiler-rt/lib/asan/asan_malloc_linux.cpp:145:3 #1 0x6ecc9b in gmalloc(unsigned long, bool) /src/poppler/goo/gmem.h:41:17 #2 0x6f6bca in CairoOutputDev::getStreamData(Stream*, char**, int*) /src/poppler/poppler/CairoOutputDev.cc:2872:23 #3 0x6f6888 in CairoOutputDev::setMimeData(GfxState*, Stream*, Object*, GfxImageColorMap*, _cairo_surface*, int) /src/poppler/poppler/CairoOutputDev.cc:3063:7 #4 0x6f7a36 in CairoOutputDev::drawImage(GfxState*, Object*, Stream*, int, int, GfxImageColorMap*, bool, int const*, bool) /src/poppler/poppler/CairoOutputDev.cc:3311:7 #5 0x81495e in Gfx::doImage(Object*, Stream*, bool) /src/poppler/poppler/Gfx.cc:4583:7 #6 0x7eb0ed in Gfx::opXObject(Object*, int) /src/poppler/poppler/Gfx.cc:4154:7 #7 0x7fba7f in Gfx::execOp(Object*, Object*, int) /src/poppler/poppler/Gfx.cc:873:3 #8 0x7facfa in Gfx::go(bool) /src/poppler/poppler/Gfx.cc:749:7 #9 0x7fa6c3 in Gfx::display(Object*, bool) /src/poppler/poppler/Gfx.cc:711:3 #10 0x8cfbad in Page::displaySlice(OutputDev*, double, double, int, bool, bool, int, int, int, int, bool, bool ()(void), void*, bool ()(Annot, void*), void*, bool) /src/poppler/poppler/Page.cc:596:10 #11 0x6bc30f in _poppler_page_render(_PopplerPage*, _cairo*, bool, PopplerPrintFlags) /src/poppler/glib/poppler-page.cc:355:15 #12 0x6bc58b in poppler_page_render_for_printing /src/poppler/glib/poppler-page.cc:458:3 #13 0x6a33e7 in LLVMFuzzerTestOneInput /src/poppler/glib/tests/fuzzing/pdf_draw_fuzzer.cc:65:9 #14 0x5a91d3 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:599:15 #15 0x594942 in fuzzer::RunOneTest(fuzzer::Fuzzer*, char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:323:6 #16 0x59a5e6 in fuzzer::FuzzerDriver(int*, char***, int ()(unsigned char const, unsigned long)) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:856:9 #17 0x5c3af2 in main /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerMain.cpp:20:10 #18 0x7f698d26bb26 in __libc_start_main (/lib64/libc.so.6+0x25b26)<p style="box-sizing: border-box; margin-right: 0em; margin-left: 0em; line-height: 1.6; word-break: break-word; color: rgb(64, 72, 91); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Liberation Sans", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Wenquanyi Micro Hei", "WenQuanYi Zen Hei", "ST Heiti", SimHei, SimSun, "WenQuanYi Zen Hei Sharp", sans-serif;">SUMMARY: AddressSanitizer: heap-buffer-overflow /src/cairo/_builddir/../src/cairoint.h:257:48 in get_unaligned_be32 Shadow bytes around the buggy address: 0x0c087fff9350: fa fa fd fd fd fd fd fd fa fa fd fd fd fd fd fd 0x0c087fff9360: fa fa fd fd fd fd fd fd fa fa fd fd fd fd fd fd 0x0c087fff9370: fa fa fd fd fd fd fd fd fa fa fd fd fd fd fd fd 0x0c087fff9380: fa fa fd fd fd fd fd fd fa fa fd fd fd fd fd fd 0x0c087fff9390: fa fa fd fd fd fd fd fd fa fa fd fd fd fd fd fd =>0x0c087fff93a0: fa fa 00 00 00 00[02]fa fa fa 00 00 00 00 00 fa 0x0c087fff93b0: fa fa 00 00 00 00 02 fa fa fa 00 00 00 00 00 fa 0x0c087fff93c0: fa fa fd fd fd fd fd fd fa fa 00 00 00 00 00 00 0x0c087fff93d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c087fff93e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c087fff93f0: 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 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 <div>==445393==ABORTING</div><div>-----------------------------------------------------------------------------------</div><p style="box-sizing: border-box; margin-right: 0em; margin-bottom: 16px; margin-left: 0em; line-height: 1.6; word-break: break-word; color: rgb(64, 72, 91); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Liberation Sans", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Wenquanyi Micro Hei", "WenQuanYi Zen Hei", "ST Heiti", SimHei, SimSun, "WenQuanYi Zen Hei Sharp", sans-serif;">==445397==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x612000001ad2 at pc 0x00000124ec6a bp 0x7ffd6245f1e0 sp 0x7ffd6245f1d8 READ of size 1 at 0x612000001ad2 thread T0 #0 0x124ec69 in get_unaligned_be32 /src/cairo/_builddir/../src/cairoint.h:257:60 #1 0x124f02a in _jbig2_get_next_segment /src/cairo/_builddir/../src/cairo-image-info.c:351:13 #2 0x124ede6 in _cairo_image_info_get_jbig2_info /src/cairo/_builddir/../src/cairo-image-info.c:412:6 #3 0x11f12d3 in _cairo_pdf_surface_emit_jbig2_image /src/cairo/_builddir/../src/cairo-pdf-surface.c:3219:14 #4 0x11e2572 in _cairo_pdf_surface_emit_surface /src/cairo/_builddir/../src/cairo-pdf-surface.c:3744:11 #5 0x11e7e65 in _cairo_pdf_surface_add_source_surface /src/cairo/_builddir/../src/cairo-pdf-surface.c:1735:14 #6 0x11e5d51 in _cairo_pdf_surface_paint_surface_pattern /src/cairo/_builddir/../src/cairo-pdf-surface.c:5023:11 #7 0x11e5418 in _cairo_pdf_surface_paint_pattern /src/cairo/_builddir/../src/cairo-pdf-surface.c:5166:9 #8 0x11db7cc in _cairo_pdf_surface_paint /src/cairo/_builddir/../src/cairo-pdf-surface.c:7988:11 #9 0x11a6f6c in _cairo_surface_paint /src/cairo/_builddir/../src/cairo-surface.c:2199:14 #10 0x11a12d7 in _cairo_surface_wrapper_paint /src/cairo/_builddir/../src/cairo-surface-wrapper.c:162:14 #11 0x11817de in _cairo_recording_surface_replay_internal /src/cairo/_builddir/../src/cairo-recording-surface.c:1862:15 #12 0x11834f0 in _cairo_recording_surface_replay_region /src/cairo/_builddir/../src/cairo-recording-surface.c:2235:12 #13 0x126ea1c in _paint_page /src/cairo/_builddir/../src/cairo-paginated-surface.c:469:11 #14 0x126d9be in _cairo_paginated_surface_show_page /src/cairo/_builddir/../src/cairo-paginated-surface.c:583:14 #15 0x11acadf in cairo_surface_show_page /src/cairo/_builddir/../src/cairo-surface.c:2506:40 #16 0x6a33f0 in LLVMFuzzerTestOneInput /src/poppler/glib/tests/fuzzing/pdf_draw_fuzzer.cc:66:9 #17 0x5a91d3 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:599:15 #18 0x594942 in fuzzer::RunOneTest(fuzzer::Fuzzer*, char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:323:6 #19 0x59a5e6 in fuzzer::FuzzerDriver(int*, char***, int ()(unsigned char const, unsigned long)) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:856:9 #20 0x5c3af2 in main /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerMain.cpp:20:10 #21 0x7f5fabdd9b26 in __libc_start_main (/lib64/libc.so.6+0x25b26) #22 0x5707f9 in _start (/root/oss-fuzz/build/out/poppler/pdf_draw_fuzzer+0x5707f9)<div><p style="box-sizing: border-box; margin-right: 0em; margin-bottom: 16px; margin-left: 0em; line-height: 1.6; word-break: break-word; color: rgb(64, 72, 91); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Liberation Sans", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Wenquanyi Micro Hei", "WenQuanYi Zen Hei", "ST Heiti", SimHei, SimSun, "WenQuanYi Zen Hei Sharp", sans-serif;">0x612000001ad2 is located 0 bytes to the right of 274-byte region [0x6120000019c0,0x612000001ad2) allocated by thread T0 here: #0 0x66fefd in malloc /src/llvm-project/compiler-rt/lib/asan/asan_malloc_linux.cpp:145:3 #1 0x6ecc9b in gmalloc(unsigned long, bool) /src/poppler/goo/gmem.h:41:17 #2 0x6f6bca in CairoOutputDev::getStreamData(Stream*, char**, int*) /src/poppler/poppler/CairoOutputDev.cc:2872:23 #3 0x6f6888 in CairoOutputDev::setMimeData(GfxState*, Stream*, Object*, GfxImageColorMap*, _cairo_surface*, int) /src/poppler/poppler/CairoOutputDev.cc:3063:7 #4 0x6f7a36 in CairoOutputDev::drawImage(GfxState*, Object*, Stream*, int, int, GfxImageColorMap*, bool, int const*, bool) /src/poppler/poppler/CairoOutputDev.cc:3311:7 #5 0x81495e in Gfx::doImage(Object*, Stream*, bool) /src/poppler/poppler/Gfx.cc:4583:7 #6 0x7eb0ed in Gfx::opXObject(Object*, int) /src/poppler/poppler/Gfx.cc:4154:7 #7 0x7fba7f in Gfx::execOp(Object*, Object*, int) /src/poppler/poppler/Gfx.cc:873:3 #8 0x7facfa in Gfx::go(bool) /src/poppler/poppler/Gfx.cc:749:7 #9 0x7fa6c3 in Gfx::display(Object*, bool) /src/poppler/poppler/Gfx.cc:711:3 #10 0x8cfbad in Page::displaySlice(OutputDev*, double, double, int, bool, bool, int, int, int, int, bool, bool ()(void), void*, bool ()(Annot, void*), void*, bool) /src/poppler/poppler/Page.cc:596:10 #11 0x6bc30f in _poppler_page_render(_PopplerPage*, _cairo*, bool, PopplerPrintFlags) /src/poppler/glib/poppler-page.cc:355:15 #12 0x6bc58b in poppler_page_render_for_printing /src/poppler/glib/poppler-page.cc:458:3 #13 0x6a33e7 in LLVMFuzzerTestOneInput /src/poppler/glib/tests/fuzzing/pdf_draw_fuzzer.cc:65:9 #14 0x5a91d3 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:599:15 #15 0x594942 in fuzzer::RunOneTest(fuzzer::Fuzzer*, char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:323:6 #16 0x59a5e6 in fuzzer::FuzzerDriver(int*, char***, int ()(unsigned char const, unsigned long)) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:856:9 #17 0x5c3af2 in main /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerMain.cpp:20:10 #18 0x7f5fabdd9b26 in __libc_start_main (/lib64/libc.so.6+0x25b26)<p style="box-sizing: border-box; margin-right: 0em; margin-left: 0em; line-height: 1.6; word-break: break-word; color: rgb(64, 72, 91); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Liberation Sans", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Wenquanyi Micro Hei", "WenQuanYi Zen Hei", "ST Heiti", SimHei, SimSun, "WenQuanYi Zen Hei Sharp", sans-serif;">SUMMARY: AddressSanitizer: heap-buffer-overflow /src/cairo/_builddir/../src/cairoint.h:257:60 in get_unaligned_be32 Shadow bytes around the buggy address: 0x0c247fff8300: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd 0x0c247fff8310: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c247fff8320: fd fd fd fd fd fd fd fd fd fa fa fa fa fa fa fa 0x0c247fff8330: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00 0x0c247fff8340: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 =>0x0c247fff8350: 00 00 00 00 00 00 00 00 00 00[02]fa fa fa fa fa 0x0c247fff8360: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00 0x0c247fff8370: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c247fff8380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fa fa 0x0c247fff8390: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00 0x0c247fff83a0: 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 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 ==445397==ABORTING</div><p style="box-sizing: border-box; margin-right: 0em; margin-left: 0em; line-height: 1.6; word-break: break-word; color: rgb(64, 72, 91); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Liberation Sans", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Wenquanyi Micro Hei", "WenQuanYi Zen Hei", "ST Heiti", SimHei, SimSun, "WenQuanYi Zen Hei Sharp", sans-serif;"><div> </div><div> </div></div></div>