Git versions of glib, goffice, gnumeric, libgsf and libxml2.

Test case: http://jutaky.com/fuzzing/gnumeric_case_001-ms-escher.c.161.xls (50 bytes!)

$ ssconvert gnumeric_case_001-ms-escher.c.161.xls /tmp/out.gnumeric

==22203==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6020001b867d at pc 0x0000004a9443 bp 0x7ffe7abf59b0 sp 0x7ffe7abf5168
READ of size 4044484831 at 0x6020001b867d thread T0
    #0 0x4a9442 in memcpy (apps/bin/ssconvert+0x4a9442)
    #1 0x7fbcb9686f55 in g_memdup gnumeric/glib/glib/gstrfuncs.c:385
    #2 0x7fbc99c16d75 in ms_escher_blip_new gnumeric/gnumeric/plugins/excel/ms-escher.c:161:22
    #3 0x7fbc99c164ae in ms_escher_read_Blip gnumeric/gnumeric/plugins/excel/ms-escher.c:516:11
    #4 0x7fbc99bf6b9c in ms_escher_read_container gnumeric/gnumeric/plugins/excel/ms-escher.c:2158:4
    #5 0x7fbc99bf3bd1 in ms_escher_parse gnumeric/gnumeric/plugins/excel/ms-escher.c:2233:2
    #6 0x7fbc99c3e580 in excel_read_workbook gnumeric/gnumeric/plugins/excel/ms-excel-read.c:7303:4
    #7 0x7fbc99bd0441 in excel_enc_file_open gnumeric/gnumeric/plugins/excel/boot.c:170:4
    #8 0x7fbc99bd1e94 in excel_file_open gnumeric/gnumeric/plugins/excel/boot.c:273:2
    #9 0x7fbcbe82ae30 in go_plugin_loader_module_func_file_open gnumeric/goffice/goffice/app/go-plugin-loader-module.c:282:3
    #10 0x7fbcbe83e9b4 in go_plugin_file_opener_open gnumeric/goffice/goffice/app/go-plugin-service.c:685:2
    #11 0x7fbcbe84c1c8 in go_file_opener_open gnumeric/goffice/goffice/app/file.c:417:2
    #12 0x7fbcc01d634a in workbook_view_new_from_input gnumeric/gnumeric/src/workbook-view.c:1278:3
    #13 0x7fbcc01d6f40 in workbook_view_new_from_uri gnumeric/gnumeric/src/workbook-view.c:1337:9
    #14 0x4e1031 in convert gnumeric/gnumeric/src/ssconvert.c:721:9
    #15 0x4ded93 in main gnumeric/gnumeric/src/ssconvert.c:913:9
    #16 0x7fbcb8c6378f in __libc_start_main (/usr/lib/libc.so.6+0x2078f)
    #17 0x437c58 in _start (apps/bin/ssconvert+0x437c58)

0x6020001b867d is located 0 bytes to the right of 13-byte region [0x6020001b8670,0x6020001b867d)
allocated by thread T0 here:
    #0 0x4bec22 in __interceptor_malloc (apps/bin/ssconvert+0x4bec22)
    #1 0x7fbcb966e339 in g_malloc gnumeric/glib/glib/gmem.c:97
    #2 0x7fbcbdcd2f4f in gsf_input_read gnumeric/libgsf/gsf/gsf-input.c:375:8
    #3 0x7fbc99bd6792 in ms_biff_query_next gnumeric/gnumeric/plugins/excel/ms-biff.c:443:23
    #4 0x7fbc99c3cda0 in excel_read_workbook gnumeric/gnumeric/plugins/excel/ms-excel-read.c:7185:9
    #5 0x7fbc99bd0441 in excel_enc_file_open gnumeric/gnumeric/plugins/excel/boot.c:170:4
    #6 0x7fbc99bd1e94 in excel_file_open gnumeric/gnumeric/plugins/excel/boot.c:273:2
    #7 0x7fbcbe82ae30 in go_plugin_loader_module_func_file_open gnumeric/goffice/goffice/app/go-plugin-loader-module.c:282:3
    #8 0x7fbcbe83e9b4 in go_plugin_file_opener_open gnumeric/goffice/goffice/app/go-plugin-service.c:685:2
    #9 0x7fbcbe84c1c8 in go_file_opener_open gnumeric/goffice/goffice/app/file.c:417:2
    #10 0x7fbcc01d634a in workbook_view_new_from_input gnumeric/gnumeric/src/workbook-view.c:1278:3
    #11 0x7fbcc01d6f40 in workbook_view_new_from_uri gnumeric/gnumeric/src/workbook-view.c:1337:9
    #12 0x4e1031 in convert gnumeric/gnumeric/src/ssconvert.c:721:9
    #13 0x4ded93 in main gnumeric/gnumeric/src/ssconvert.c:913:9
    #14 0x7fbcb8c6378f in __libc_start_main (/usr/lib/libc.so.6+0x2078f)

SUMMARY: AddressSanitizer: heap-buffer-overflow ??:0 memcpy

--
Juha Kylmänen