CVE-2011-1276

published 2011-06-16

CVE-2011-1276: Buffer overflow in Microsoft Excel 2002 SP3, 2003 SP3, and 2007 SP2; Office 2004 and 2008 for Mac; Open XML File Format Converter for Mac; Excel Viewer SP2…

Priority P2 59 critical 9.3 CVSS 2.0

AV N AC M Au N C C I C A C

EXPLOIT

Buffer overflow in Microsoft Excel 2002 SP3, 2003 SP3, and 2007 SP2; Office 2004 and 2008 for Mac; Open XML File Format Converter for Mac; Excel Viewer SP2; and Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted Excel spreadsheet, related to improper validation of record information, aka "Excel Buffer Overrun Vulnerability."

Affected

6 ranges

Vendor	Product	Version range	Fixed in
microsoft	excel	—	—
microsoft	excel	—	—
microsoft	excel	—	—
microsoft	office	—	—
microsoft	office	—	—
microsoft	office_compatibility_pack	—	—

Detection & IOCs extracted from sources · hover to see the quote

command ID;P P;PAAAA (x550) P↗

• → Detect SLK (SYLK) files with an excessive number of 'P;P...' records (550+ repetitions), which is the trigger pattern for the buffer overrun in Excel's SLYK format parser. ↗

• · The PoC targets ALL tested platforms and affects multiple Office product lines including Office 2004/2008 for Mac, Open XML File Format Converter for Mac, Excel Viewer SP2, and Office Compatibility Pack SP2 — detection should not be scoped only to Windows Excel. ↗

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CWE-119