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Gnumeric XLS HLINK Opcode Processing Code Execution Vulnerability
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Secunia Advisory:
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SA28725
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Release Date:
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2008-01-31
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Last Update:
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2008-02-13
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Popularity:
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4,716 views
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Critical:
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Highly critical
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Impact:
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System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | GNOME Gnumeric 1.x
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Binary Analysis:
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BA375 :: Available for 1 Credit 
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| CVE reference: | CVE-2008-0668
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Description:
A vulnerability has been reported in Gnumeric, which can be exploited by malicious people to compromise a user's system.
The vulnerability is caused due to integer overflows and signedness errors when processing XLS HLINK opcodes within the "excel_read_HLINK()" function in plugins/excel/ms-excel-read.c. This can be exploited to corrupt the stack via a specially crafted XLS file.
Successful exploitation allows execution of arbitrary code.
The vulnerability is confirmed in version 1.6.3. Versions prior to 1.8.1 may also be affected.
Solution:
Update to version 1.8.1.
http://ftp.gnome.org/pub/GNOME/sources/gnumeric/1.8/
Provided and/or discovered by:
Originally reported by the vendor as a crash.
Additional information provided by Secunia Research.
Changelog:
2008-02-13: Added CVE reference.
Original Advisory:
http://www.gnome.org/projects/gnumeric/announcements/1.8/gnumeric-1.8.1.shtml
http://bugzilla.gnome.org/show_bug.cgi?id=505330
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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