-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ZDI-12-131 : Microsoft .NET Framework Undersized Glyph Buffer Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-12-131 August 3, 2012 - -- CVE ID: CVE-2012-0162 - -- CVSS: 7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P - -- Affected Vendors: Microsoft - -- Affected Products: Microsoft .NET - -- Vulnerability Details: This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of the .NET Framework. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within Microsoft .NET handling of XAML Browser Applications (XBAP) graphics components. It is possible to cause an undersized allocation for a buffer which is populated with user-supplied glyph data, resulting in memory corruption which can be leveraged to remotely execute code. - -- Vendor Response: Microsoft has issued an update to correct this vulnerability. More details can be found at: http://technet.microsoft.com/en-us/security/bulletin/ms12-034 - -- Disclosure Timeline: 2011-12-07 - Vulnerability reported to vendor 2012-08-03 - Coordinated public release of advisory - -- Credit: This vulnerability was discovered by: * Vitaliy Toropov - -- About the Zero Day Initiative (ZDI): Established by TippingPoint, The Zero Day Initiative (ZDI) represents a best-of-breed model for rewarding security researchers for responsibly disclosing discovered vulnerabilities. Researchers interested in getting paid for their security research through the ZDI can find more information and sign-up at: http://www.zerodayinitiative.com The ZDI is unique in how the acquired vulnerability information is used. TippingPoint does not re-sell the vulnerability details or any exploit code. Instead, upon notifying the affected product vendor, TippingPoint provides its customers with zero day protection through its intrusion prevention technology. Explicit details regarding the specifics of the vulnerability are not exposed to any parties until an official vendor patch is publicly available. Furthermore, with the altruistic aim of helping to secure a broader user base, TippingPoint provides this vulnerability information confidentially to security vendors (including competitors) who have a vulnerability protection or mitigation product. Our vulnerability disclosure policy is available online at: http://www.zerodayinitiative.com/advisories/disclosure_policy/ Follow the ZDI on Twitter: http://twitter.com/thezdi -----BEGIN PGP SIGNATURE----- Version: PGP Desktop 10.2.0 (Build 1950) Charset: utf-8 wsBVAwUBUBwrLlVtgMGTo1scAQL3jAf/U9T6mxWrH5pqT77gThXFsNAKdT0hqVV7 bqMapoc0minh05LMm9wm7m5kkZIO57U6RlnRdm81cvI3j4OUHbWPX34SFAxu2xgS fGHgwoZsGyTruR32VDqp1ZuJsN3qKc7ydk7KXt0E/HX57hBK6TCN25Cyiivj7Pmy uux8k0+TZ/L3/ZryhRLololNOMKZ6hXwNXjFCzNhfWQLUT6JWrIlYUycxxge5ICQ f4ZEy2qMypRf9yj6FyqTS0WiIEg5FtTl6jk2agswHO3FN+8lM1R8pSHLNve/FAOr UNPruwZ9bRlIe28mEH60dXciRPVxYTcj9suY1ejfGRq2JvxkrWA5Uw== =VUCP -----END PGP SIGNATURE-----
