Detections
Analytics

CVE-2016-6171

high

Description

Knot DNS before 2.3.0 allows remote DNS servers to cause a denial of service (memory exhaustion and slave server crash) via a large zone transfer for (1) DDNS, (2) AXFR, or (3) IXFR.

References

https://github.com/sischkg/xfer-limit/blob/master/README.md

http://www.securityfocus.com/bid/91678

http://www.openwall.com/lists/oss-security/2016/07/06/4

http://www.openwall.com/lists/oss-security/2016/07/06/3

https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html

https://gitlab.labs.nic.cz/labs/knot/issues/464

https://gitlab.labs.nic.cz/labs/knot/blob/c546a70563ef4c7badb7cb5bdf6d1ba8e7adae82/NEWS

Details

Source: Mitre, NVD

Published: 2017-02-09

Updated: 2025-04-20

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 8.6

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

Severity: High

EPSS

EPSS: 0.01196