Vulnerability Report

CVE-2016-6170

Title: Isc Bind Denial of Service (DoS)

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2016-6170.

CWE Category CWE-20
Published Date Jul 06, 2016
Modified Date Jun 17, 2026
Exploit Status Not Found
Score 6.5 CVSS v3.1
Exploit Probability (EPSS)
40.54%

Vulnerability Summary

CVE-2016-6170: ISC BIND through 9.9.9-P1, 9.10.x through 9.10.4-P1, and 9.11.x through 9.11.0b1 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.

Impacted Vendors

I
isc 1

Reference Links

http://www.openwall.com/lists/oss-security/2016/07/06/3 http://www.securityfocus.com/bid/91611 http://www.securitytracker.com/id/1036241 https://bugzilla.redhat.com/show_bug.cgi?id=1353563 https://github.com/sischkg/xfer-limit/blob/master/README.md https://kb.isc.org/article/AA-01390 https://kb.isc.org/article/AA-01390/169/CVE-2016-6170 https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015073.html https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015075.html https://security.gentoo.org/glsa/201610-07 http://www.openwall.com/lists/oss-security/2016/07/06/3 http://www.securityfocus.com/bid/91611 http://www.securitytracker.com/id/1036241 https://bugzilla.redhat.com/show_bug.cgi?id=1353563 https://github.com/sischkg/xfer-limit/blob/master/README.md https://kb.isc.org/article/AA-01390 https://kb.isc.org/article/AA-01390/169/CVE-2016-6170 https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015073.html https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015075.html https://security.gentoo.org/glsa/201610-07
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
6.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.0
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:S/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2016-6170 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.