Multiple vulnerabilities have been identified in Microsoft Windows, which could be exploited by remote attackers to cause a denial of service or compromise a vulnerable system.
The first issue is caused due to the Server Message Block (SMB) Protocol software insufficiently validating all fields when parsing specially crafted SMBv2 packets, which could cause an infinite loop, leading to a denial of service.
The second vulnerability is caused due to the Server Message Block (SMB) implementation not using the validated copy of the command value when handling SMB Multi-Protocol Negotiate Request packets, which could allow attackers to crash an affected system or execute arbitrary code.
The third issue is caused by an error in SMB when parsing malformed packets. For additional information, see : VUPEN/ADV-2009-2561
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