CVE:CVE-2011-1987
CNNVD:CNNVD-201109-172
Microsoft Office Excel是Office套件中的电子表格工具。
Microsoft Excel在处理特制Excel文件时存在远程代码执行漏洞。此漏洞属于整数签名问题，可导致无效数组索引，可由带负iax字段的某些记录触发。传递的负16位值稍后符号扩展到32位，然后用作堆数组的索引。由于对iax字段验证不全，可能在数组之外索引，这会导致以用户数据覆盖任意内存位置，执行任意代码。
solution:Upgrade microsoft excel to a higher version than 2003:sp3,2007:sp2,2010,2010:sp1,and avoid the version 2003:sp3,2007:sp2,2010,2010:sp1; Upgrade microsoft excel_viewer to a higher version than *:sp2,and avoid the version *:sp2; Upgrade microsoft office to a higher version than 2004,2007:sp2,2008,2010,2010:sp1,2011,and avoid the version 2004,2007:sp2,2008,2010,2010:sp1,2011; Upgrade microsoft office_compatibility_pack to a higher version than 2007:sp2,and avoid the version 2007:sp2; Upgrade microsoft open_xml_file_format_converter to a higher version than *