A vulnerability in multiple vendor products could allow a local attacker to gain elevated privileges on a targeted system.
The vulnerability is due to improper memory operations that are performed by the affected software when the software processes user-supplied input. An attacker could exploit this vulnerability by accessing a targeted system and executing an application that submits malicious input to the affected software. A successful exploit could allow the attacker to execute arbitrary code with elevated privileges and compromise the system completely.
Multiple vendors confirmed the vulnerability and released software updates.
To exploit this vulnerability, the attacker must have user-level access to the targeted system. This access requirement could reduce the likelihood of a successful exploit.
Microsoft addressed this vulnerability by correcting how the affected software handles objects in memory.
Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to access local systems.
Administrators are advised to allow only privileged users to access administration or management systems.
Administrators may consider using the Microsoft Baseline Security Analyzer (MBSA) scan tool to identify common security misconfigurations and missing security updates on system endpoints.
Administrators are advised to monitor critical systems.
Xen.org has released a security advisory at the following link: XSA-260
US-CERT has released a vulnerability note at the following link: VU#631579
Microsoft customers can obtain updates directly by using the links in the Microsoft Security Update Guide. These updates are also distributed by Windows automatic update features and are available from the Microsoft Update Catalog. Microsoft Windows Server Update Services (WSUS), Systems Management Server, and System Center Configuration Manager can assist administrators in deploying software updates.
Xen.org has released patches to resolve this vulnerability, which can be found in the vendor's security advisory located in the "Vendor Announcements" section of this alert.
Added a vendor and product that are affected by the kernel privilege escalation vulnerability.
Header, Summary, Vendor Announcements, Fixed Software, and Affected Products.
for 32-bit systems (SP1) | for x64-based systems (SP1)
for 32-bit Systems (Base) | for x64-based Systems (Base)
for 32-bit Systems (Base) | for x64-based Systems (Base) | 1607 for 32-bit Systems (Base) | 1607 for x64-based Systems (Base) | 1703 for 32-bit Systems (Base) | 1703 for x64-based Systems (Base) | 1709 for 32-bit Systems (Base) | 1709 for x64-based Systems (Base) | 1803 for 32-bit Systems (Base) | 1803 for x64-based Systems (Base)
Windows Server 2008
Datacenter Edition (SP2) | Datacenter Edition, 64-bit (SP2) | Itanium-Based Systems Edition (SP2) | Enterprise Edition (SP2) | Enterprise Edition, 64-bit (SP2) | Essential Business Server Standard (SP2) | Essential Business Server Premium (SP2) | Essential Business Server Premium, 64-bit (SP2) | Standard Edition (SP2) | Standard Edition, 64-bit (SP2) | Web Server (SP2) | Web Server, 64-bit (SP2)
Windows Server 2008 R2
x64-Based Systems Edition (SP1) | Itanium-Based Systems Edition (SP1)
Windows Server 2012
Original Release (Base)
Windows Server 2012 R2
Original Release (Base)
Windows Server 2016
x64-Based Systems (Base) | 1709 (Base) | 1803 (Base)
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Cisco Multivendor Vulnerability Alerts respond to vulnerabilities identified in third-party vendors' products. These alerts contain information compiled from diverse sources and provide comprehensive technical descriptions, objective analytical assessments, workarounds and practical safeguards, and links to vendor advisories and patches.