Secunia Research has discovered multiple vulnerabilities in Microsoft Windows, which can be exploited by malicious people to compromise a vulnerable system. An error within the "LoadUvsTable()" function can be exploited to cause a heap-based buffer overflow via a font file containing specially crafted Unicode Variation Sequences tables. An integer overflow error within the "LoadFont()" function can be exploited to cause a heap-based buffer overflow via a font file containing specially crafted Unicode Variation Sequences tables. Successful exploitation of the vulnerabilities allows execution of arbitrary code.
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