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Short Name

UDP:MS-WINDOWS-TCP-IP-CNTR

Severity

Medium

Recommended

No

Recommended Action

Drop

Category

UDP

Keywords

Microsoft Windows TCP-IP Reference Counter Overflow

Release Date

2013/01/08

Update Number

2223

Supported Platforms

idp-4.0+, isg-3.0+, j-series-9.5+, mx-9.4+, srx-9.2+, srx-branch-9.4+, vsrx-12.1+

UDP: Microsoft Windows TCP-IP Reference Counter Overflow


This signature detects attempts to exploit a known vulnerability in Microsoft Windows. It is due to an error while handling a stream of specially crafted UDP packets. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted stream of UDP packets to the affected system. This can lead to code execution in the context of Ring 0 (Kernel). If code execution is unsuccessful, the operating system might crash resulting in denial-of-service condition.

Extended Description

Integer overflow in the TCP/IP implementation in Microsoft Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows remote attackers to execute arbitrary code by sending a sequence of crafted UDP packets to a closed port, aka "Reference Counter Overflow Vulnerability."

Affected Products

  • microsoft windows_7 - (-)
  • microsoft windows_7 - (sp1)
  • microsoft windows_7 - (sp1:x32)
  • microsoft windows_7 - (sp1:x64)
  • microsoft windows_7 - (-:x32)
  • microsoft windows_7 - (-:x64)
  • microsoft windows_server_2008 r2
  • microsoft windows_server_2008 r2 (:itanium)
  • microsoft windows_server_2008 r2 (sp1)
  • microsoft windows_server_2008 r2 (sp1:itanium)
  • microsoft windows_server_2008 r2 (sp1:x64)
  • microsoft windows_server_2008 r2 (:x64)
  • microsoft windows_server_2008 (sp2)
  • microsoft windows_server_2008 - (sp2)
  • microsoft windows_server_2008 - (sp2:itanium)
  • microsoft windows_server_2008 (sp2:x32)
  • microsoft windows_server_2008 (sp2:x64)
  • microsoft windows_vista (sp2)
  • microsoft windows_vista (sp2:x64)

References

  • CVE: CVE-2011-2013

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