CVE-2017-15105
MEDIUMUnbound < 1.6.8 - Improperly Implemented Security Check for Standard
Title source: llmDescription
A flaw was found in the way unbound before 1.6.8 validated wildcard-synthesized NSEC records. An improperly validated wildcard NSEC record could be used to prove the non-existence (NXDOMAIN answer) of an existing wildcard record, or trick unbound into accepting a NODATA proof.
References (5)
Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/102817
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2019/02/msg00022.html
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/01/msg00039.html
Patch, Vendor Advisory x_refsource_confirm
https://unbound.net/downloads/CVE-2017-15105.txt
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3673-1/
Scores
CVSS v3
5.3
EPSS
0.0268
EPSS Percentile
83.8%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Details
CWE
CWE-358
CWE-20
Status
published
Products (7)
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
16.04
canonical/ubuntu_linux
17.10
canonical/ubuntu_linux
18.04
debian/debian_linux
7.0
debian/debian_linux
8.0
nlnetlabs/unbound
< 1.6.8
Published
Jan 23, 2018
Tracked Since
Feb 18, 2026