MS09-050 Vulnerabilities in SMBv2 Could Allow Remote Code Execution (975517)
Critical - Remote Code Execution This security update resolves one publicly disclosed and two privately reported vulnerabilities in Server Message Block Version 2 (SMBv2). The most severe of the vulnerabilities could allow remote code execution if an attacker sent a specially crafted SMB packet to a computer running the Server service. Firewall best practices and standard default firewall configurations can help protect networks from attacks that originate from outside the enterprise perimeter. Best practices recommend that systems that are connected to the Internet have a minimal number of ports exposed.
Bulletin details at Microsoft.com
Bulletin details at Microsoft.com
Related CVE Entries
CVE-2009-3103
Public exploit
Array index error in the SMBv2 protocol implementation in srv2.sys in Microsoft Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold and SP2, and Windows 7 RC allows remote attackers to execute arbitrary code or cause a denial of service (system crash) via an & (ampersand) character in a Process ID High header field in a NEGOTIATE PROTOCOL REQUEST packet, which triggers an attempted dereference of an out-of-bounds memory location, aka "SMBv2 Negotiation Vulnerability." NOTE: some of these details are obtained from third party information.
Max CVSS
10.0
EPSS Score
97.27%
Published
2009-09-08
Updated
2023-12-07
Microsoft Windows Vista Gold, SP1, and SP2 and Server 2008 Gold and SP2 do not properly validate fields in SMBv2 packets, which allows remote attackers to cause a denial of service (infinite loop and system hang) via a crafted packet to the Server service, aka "SMBv2 Infinite Loop Vulnerability."
Max CVSS
7.8
EPSS Score
79.87%
Published
2009-10-14
Updated
2023-12-07
Microsoft Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold and SP2, and Windows 7 RC do not properly process the command value in an SMB Multi-Protocol Negotiate Request packet, which allows remote attackers to execute arbitrary code via a crafted SMBv2 packet to the Server service, aka "SMBv2 Command Value Vulnerability."
Max CVSS
10.0
EPSS Score
74.26%
Published
2009-10-14
Updated
2023-12-07