Vulnerability Report

CVE-2016-6173

Title: Nlnetlabs Nsd Denial of Service (DoS)

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2016-6173.

CWE Category CWE-399

Published Date Feb 09, 2017

Modified Date Jun 17, 2026

Exploit Status Not Found

Score 7.5 CVSS v3.0

Exploit Probability (EPSS)

2.92%

Vulnerability Summary

CVE-2016-6173: NSD before 4.1.11 allows remote DNS master servers to cause a denial of service (/tmp disk consumption and slave server crash) via a zone transfer with unlimited data.

Impacted Vendors

nlnetlabs 1

Reference Links

http://www.nlnetlabs.nl/svn/nsd/tags/NSD_4_1_11_REL/doc/RELNOTES http://www.openwall.com/lists/oss-security/2016/07/06/3 http://www.openwall.com/lists/oss-security/2016/07/06/4 http://www.securityfocus.com/bid/91678 https://github.com/sischkg/xfer-limit/blob/master/README.md https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html https://open.nlnetlabs.nl/pipermail/nsd-users/2016-August/002342.html https://www.nlnetlabs.nl/bugs-script/show_bug.cgi?id=790 http://www.nlnetlabs.nl/svn/nsd/tags/NSD_4_1_11_REL/doc/RELNOTES http://www.openwall.com/lists/oss-security/2016/07/06/3 http://www.openwall.com/lists/oss-security/2016/07/06/4 http://www.securityfocus.com/bid/91678 https://github.com/sischkg/xfer-limit/blob/master/README.md https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html https://open.nlnetlabs.nl/pipermail/nsd-users/2016-August/002342.html https://www.nlnetlabs.nl/bugs-script/show_bug.cgi?id=790

CVSS v3.0

Source Entity [email protected]

Severity HIGH

7.5

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0

Source Entity [email protected]

Severity HIGH

7.8

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:N/I:N/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns