81729 : Microsoft Windows tcpip.sys Double-free IPv6 Address Binding Parsing Local Privilege Escalation
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Disclosure Date


Microsoft Windows contains a double-free flaw related to the TCP/IP stack that may allow an attacker to gain access to unauthorized privileges. The issue is triggered when parsing IPv6 address bindings, which will allow a local attacker to gain escalated privileges.


Location: Local Access Required
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Patch / RCS
Exploit: Exploit Private
Disclosure: Vendor Verified, Coordinated Disclosure


Currently, there are no known workarounds or upgrades to correct this issue. However, Microsoft has released a patch to address this vulnerability. Check the vendor advisory or solution in the references section.


Microsoft Corporation
Windows 7
for x64-based Systems
for x64-based Systems SP1
for 32-bit Systems
for 32-bit Systems SP1
Windows Server 2008 R2
for Itanium-based Systems
for x64-based Systems SP1
for Itanium-based Systems SP1
for x64-based Systems



CVSSv2 Score

CVSSv2 Base Score = 6.8
Source: nvd.nist.gov | Generated: 2012-05-09 | Disagree?

Access_vector_0 Access_complexity_2 Authentication_1 Confidentiality_impact_2 Integrity_impact_2 Availability_impact_2


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