Click any highlighted term for further explanation. For more information, contact technical support.
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Details
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Vulnerability name/brief description
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MS12-017 - Vulnerability in DNS Server Could Allow Denial of Service
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CVE/CAN name
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Vendor threat level
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Important
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SophosLabs threat level
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Medium
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Solution
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MS12-017
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Vendor description
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This security update resolves a privately reported vulnerability in Microsoft Windows. The vulnerability could allow denial of service if a remote unauthenticated attacker sends a specially crafted DNS query to the target DNS server.
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SophosLabs comments
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Successfully exploiting this vulnerability may cause a DNS server to become unresponsive and to restart automatically.
Periodically clearing the DNS cache on affected servers may mitigate this vulnerability.
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SophosLabs testing result
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No SophosLabs testing result found
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Currently known exploits
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No currently known exploits found
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First sample seen
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No samples found
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Discovery date
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13 Mar 2012
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Affected software
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Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition Service Pack 2
Windows Server 2003 for Itanium-based Systems Service Pack 2
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 R2 for x64-based Systems No Service Pack and Service Pack 1
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References
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Credits
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Revisions
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-
March 13, 2012 - Initial analysis written
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Explanation of terms
Vulnerability Name/Brief Description:
Vendor identifier plus a brief description of the type of attack.
CVE/CAN Name:
Currently assigned CVE name. If a CVE name doesn't exist the CAN name will be used until a CVE has been assigned.
Vendor Threat Level:
Threat level assigned by the vendor
SophosLabs Threat Level:
Threat level assigned by SophosLabs
- LOW RISK - There is little chance of this vulnerability being actively exploited by malware.
- MEDIUM RISK - There is a possibility of this vulnerability being actively exploited by malware.
- HIGH RISK - There is a strong possibility of this vulnerability being actively exploited by malware.
- CRITICAL RISK - This vulnerability will almost certainly be actively exploited by malware.
Solution:
Vendor-supplied Patch identifier and recommended solution, or workaround if applicable.
Vendor Description:
Summary of the cause and potential effect of the vulnerability provided by the vendor.
SophosLabs Comments:
SophosLabs' opinions and observations of the vulnerability in question.
SophosLabs Testing Result:
Details of completed lab testing, if applicable. Please note that the lab test environment may differ significantly from user environments.
Currently Known Exploits:
List of identities for known exploits, if applicable.
First Sample Seen:
Date of the first sample seen by SophosLabs.
Discovery Date:
Date of the earliest known publically disclosed advisory.
Affected Software:
Vulnerable platforms and software versions.