Severity Rating: Important
Revision Note: V1.2 (June 14, 2011): Announced that the updates for Microsoft Office for Mac, which were not available when the bulletin was originally published, are now available in bulletin MS11-045. Also, for both vulnerabilities addressed by this bulletin, corrected erroneous registry script entries in the workarounds for setting Office File Validation to disable the opening of files that fail validation.
Summary: This security update resolves two privately reported vulnerabilities in Microsoft PowerPoint. The vulnerabilities could allow remote code execution if a user opens a specially crafted PowerPoint file. An attacker who successfully exploited either of these vulnerabilities could gain the same user rights as the logged-on user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. Installing and configuring Office File Validation (OFV) to prevent the opening of suspicious files blocks the attack vectors for exploiting the vulnerabilities described in CVE-2011-1269 and CVE-2011-1270.
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Revision Note: V1.2 (June 14, 2011): Announced that the updates for Microsoft Office for Mac, which were not available when the bulletin was originally published, are now available in bulletin MS11-045. Also, for both vulnerabilities addressed by this bulletin, corrected erroneous registry script entries in the workarounds for setting Office File Validation to disable the opening of files that fail validation.
Summary: This security update resolves two privately reported vulnerabilities in Microsoft PowerPoint. The vulnerabilities could allow remote code execution if a user opens a specially crafted PowerPoint file. An attacker who successfully exploited either of these vulnerabilities could gain the same user rights as the logged-on user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. Installing and configuring Office File Validation (OFV) to prevent the opening of suspicious files blocks the attack vectors for exploiting the vulnerabilities described in CVE-2011-1269 and CVE-2011-1270.
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