MS15-058  Vulnerabilities in SQL Server Could Allow Remote Code Execution

2015-07-14 This security update resolves vulnerabilities in Microsoft SQL Server. The most severe vulnerabilities could allow remote code execution if an authenticated attacker runs a specially crafted query that is designed to execute a virtual function from a wrong address, leading to a function call to uninitialized memory. To exploit this vulnerability an attacker would need permissions to create or modify a database.
Vulnerabilities addressed in this bulletin:

SQL Server Elevation of Privilege Vulnerability

An elevation of privilege vulnerability exists in Microsoft SQL Server when it improperly casts pointers to an incorrect class. An attacker could exploit the vulnerability if their credentials allow access to an affected SQL server database. An attacker who successfully exploited this vulnerability could gain elevated privileges that could be used to view, change, or delete data; or create new accounts.
CVE-2015-1761

SQL Server Remote Code Execution Vulnerability

A remote code execution vulnerability exists in Microsoft SQL Server when it incorrectly handles internal function calls to uninitialized memory. An attacker could exploit the vulnerability if a privileged user runs a specially crafted query on an affected SQL server that has special permission settings (such as VIEW SERVER STATE) turned on. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts.
CVE-2015-1762

SQL Server Remote Code Execution Vulnerability

An authenticated remote code execution vulnerability exists in Microsoft SQL Server when it incorrectly handles internal function calls to uninitialized memory. An attacker could exploit the vulnerability if a privileged user runs a specially crafted query that is designed to execute a virtual function from a wrong address, leading to a function call to uninitialized memory. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts.
CVE-2015-1763

Bulletin details at Microsoft.com