These vulnerabilities were discovered by Marcin ‘Icewall’ Noga of Talos.
Today, Talos is disclosing several vulnerabilities that have been identified in the AntennaHouse DMC library which is used in various products for web-based document searching and rendering. These vulnerabilities manifest as a failure to correctly parse Microsoft Office documents and could be exploited to achieve arbitrary code execution. These vulnerabilities are being disclosed in coordination with AntennaHouse.
Multiple heap corruption vulnerabilities exist within AntennaHouse DMC HTMLFilter that could be exploited to achieve arbitrary code execution on the targeted machine. These vulnerabilities manifest due to improper handling of Microsoft Office documents, such as Word and PowerPoint files. An adversary that passes a specifically crafted document to the converter could exploit one of these vulnerabilities. Note that the method that an adversary could compromise a vulnerable machine varies as this library is known to be incorporated into other third-party products.
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