VDB-88751 · CVE-2016-6170 · BID 91611

ISC BIND up to 9.10.4-P1 IXFR Response input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

A vulnerability, which was classified as critical, has been found in ISC BIND up to 9.10.4-P1 (Domain Name Software). This issue affects an unknown code block of the component IXFR Response Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. The summary by CVE is:

ISC BIND through 9.10.4-P1 allows primary DNS servers to cause a denial of service (secondary DNS server crash) via a large AXFR response, and possibly allows IXFR servers to cause a denial of service (IXFR client crash) via a large IXFR response and allows remote authenticated users to cause a denial of service (primary DNS server crash) via a large UPDATE message.

The weakness was released 07/06/2016 as confirmed posting (oss-sec). It is possible to read the advisory at openwall.com. The identification of this vulnerability is CVE-2016-6170 since 07/06/2016. The attack may be initiated remotely. The requirement for exploitation is a simple authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 99499 (openSUSE Security Update : bind (openSUSE-2017-491)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169849 (SUSE Enterprise Linux Security Update for bind (SUSE-SU-2017:0998-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (99499). seclists.org is providing further details. Entries connected to this vulnerability are available at 88750, 88752 and 96764.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
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: 99499
Nessus Name: openSUSE Security Update : bind (openSUSE-2017-491)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for bind99 FEDORA-2016-9417b4c1dc
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

06/28/2016 🔍
07/06/2016 +8 days 🔍
07/06/2016 +0 days 🔍
07/06/2016 +0 days 🔍
07/06/2016 +0 days 🔍
07/07/2016 +1 days 🔍
07/07/2016 +0 days 🔍
04/20/2017 +287 days 🔍
02/18/2019 +669 days 🔍

Sourcesinfo

Vendor: isc.org

Advisory: openwall.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-6170 (🔍)
SecurityTracker: 1036241
SecurityFocus: 91611 - ISC BIND CVE-2016-6170 Remote Denial of Service Vulnerability

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 07/07/2016 10:43
Updated: 02/18/2019 13:24
Changes: 07/07/2016 10:43 (63), 02/18/2019 13:24 (22)
Complete: 🔍

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