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Bug 751908 - Out-of-bounds read in ms-chart.c:2764 on a fuzzed xls file
Out-of-bounds read in ms-chart.c:2764 on a fuzzed xls file
Status: RESOLVED FIXED
Product: Gnumeric
Classification: Applications
Component: import/export MS Excel (tm)
git master
Other Linux
: Normal critical
: ---
Assigned To: Jody Goldberg
Jody Goldberg
http://jutaky.com/fuzzing/gnumeric_ca...
Depends on:
Blocks:
 
 
Reported: 2015-07-03 14:36 UTC by jutaky
Modified: 2015-07-03 19:10 UTC
See Also:
GNOME target: ---
GNOME version: ---



Description jutaky 2015-07-03 14:36:07 UTC
Git versions of glib, goffice, gnumeric, libgsf and libxml2.

Test case: http://jutaky.com/fuzzing/gnumeric_case_002-ms-chart.c.2764.xls

$ ssconvert gnumeric_case_002-ms-chart.c.2764.xls /tmp/out.gnumeric

==31698==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000018 (pc 0x7f40f5429b08 bp 0x7ffef882b7d0 sp 0x7ffef8829720 T0)
    #0 0x7f40f5429b07 in xl_chart_read_end gnumeric/gnumeric/plugins/excel/ms-chart.c:2764:15
    #1 0x7f40f53bc6e3 in ms_excel_chart_read gnumeric/gnumeric/plugins/excel/ms-chart.c:3779:14
    #2 0x7f40f51f5ccd in excel_read_BOF gnumeric/gnumeric/plugins/excel/ms-excel-read.c:7110:4
    #3 0x7f40f51f0bc5 in excel_read_workbook gnumeric/gnumeric/plugins/excel/ms-excel-read.c:7211:4
    #4 0x7f40f5184221 in excel_enc_file_open gnumeric/gnumeric/plugins/excel/boot.c:170:4
    #5 0x7f40f5185c74 in excel_file_open gnumeric/gnumeric/plugins/excel/boot.c:273:2
    #6 0x7f4119ddde30 in go_plugin_loader_module_func_file_open gnumeric/goffice/goffice/app/go-plugin-loader-module.c:282:3
    #7 0x7f4119df19b4 in go_plugin_file_opener_open gnumeric/goffice/goffice/app/go-plugin-service.c:685:2
    #8 0x7f4119dff1c8 in go_file_opener_open gnumeric/goffice/goffice/app/file.c:417:2
    #9 0x7f411b77e854 in workbook_view_new_from_input gnumeric/gnumeric/src/workbook-view.c:1278:3
    #10 0x7f411b77f440 in workbook_view_new_from_uri gnumeric/gnumeric/src/workbook-view.c:1337:9
    #11 0x4e1031 in convert gnumeric/gnumeric/src/ssconvert.c:721:9
    #12 0x4ded93 in main gnumeric/gnumeric/src/ssconvert.c:913:9
    #13 0x7f411421a78f in __libc_start_main (/usr/lib/libc.so.6+0x2078f)
    #14 0x437c58 in _start (apps/bin/ssconvert+0x437c58)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV gnumeric/gnumeric/plugins/excel/ms-chart.c:2764 xl_chart_read_end

--
Juha Kylmänen
Comment 1 Jean Bréfort 2015-07-03 19:10:28 UTC
This problem has been fixed in our software repository. The fix will go into the next software release. Once that release is available, you may want to check for a software upgrade provided by your Linux distribution.