CVE-2016-6173 Information

Description

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.

CVSS Vector

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

Reference

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

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5