Microsoft Windows Server 2012/Server 2012 R2 DNS Server use after free

CVSS Meta Temp Score
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CTI Interest Score
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8.4$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Microsoft Windows Server 2012/Server 2012 R2. This issue affects some unknown processing of the component DNS Server. The manipulation leads to use after free. The identification of this vulnerability is CVE-2016-3227. There is no exploit available. It is recommended to apply a patch to fix this issue. Once again VulDB remains the best source for vulnerability data.

Detailsinfo

A vulnerability classified as critical was found in Microsoft Windows Server 2012/Server 2012 R2 (Operating System). This vulnerability affects some unknown processing of the component DNS Server. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Use-after-free vulnerability in the DNS Server component in Microsoft Windows Server 2012 Gold and R2 allows remote attackers to execute arbitrary code via crafted requests, aka "Windows DNS Server Use After Free Vulnerability."

The weakness was published 06/14/2016 as MS16-071 as confirmed bulletin (Technet). The advisory is shared for download at technet.microsoft.com. This vulnerability was named CVE-2016-3227 since 03/15/2016. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 10/08/2024).

The vulnerability scanner Nessus provides a plugin with the ID 91599 (MS16-071: Security Update for Microsoft Windows DNS Server (3164065)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 91239 (Microsoft Windows DNS Server Remote Code Execution Vulnerability (MS16-071)).

Applying the patch MS16-071 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (91599) and SecurityFocus (BID 91117†). Similar entries are available at VDB-87944, VDB-87942, VDB-87943 and VDB-87941. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 91599
Nessus Name: MS16-071: Security Update for Microsoft Windows DNS Server (3164065)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802103
OpenVAS Name: Microsoft Windows DNS Server Remote Code Execution Vulnerability (3164065)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: MS16-071

Timelineinfo

03/15/2016 🔍
06/14/2016 +91 days 🔍
06/14/2016 +0 days 🔍
06/14/2016 +0 days 🔍
06/15/2016 +1 days 🔍
06/16/2016 +1 days 🔍
10/08/2024 +3036 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS16-071
Status: Confirmed

CVE: CVE-2016-3227 (🔍)
GCVE (CVE): GCVE-0-2016-3227
GCVE (VulDB): GCVE-100-87940

OVAL: 🔍

SecurityFocus: 91117
SecurityTracker: 1036095

See also: 🔍

Entryinfo

Created: 06/16/2016 04:32 PM
Updated: 10/08/2024 10:12 AM
Changes: 06/16/2016 04:32 PM (74), 01/25/2019 11:02 AM (3), 08/23/2022 06:20 PM (4), 10/08/2024 10:12 AM (16)
Complete: 🔍
Cache ID: 18:82F:40

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