CVE-2017-15105: Input Validation
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.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2017-15105.
What is the severity of CVE-2017-15105?
The severity of CVE-2017-15105 is medium, with a severity value of 5.3.
What software is affected by CVE-2017-15105?
The unbound software before versions 1.6.8 and 1.9.0-2+deb10u2 to 1.18.0-2 are affected by CVE-2017-15105.
How can I fix CVE-2017-15105?
To fix CVE-2017-15105, you should update unbound to version 1.6.8 or newer.
Where can I find more information about CVE-2017-15105?
You can find more information about CVE-2017-15105 at the following references: [SecurityFocus](http://www.securityfocus.com/bid/102817), [Debian LTS Announce - January 2018](https://lists.debian.org/debian-lts-announce/2018/01/msg00039.html), [Debian LTS Announce - February 2019](https://lists.debian.org/debian-lts-announce/2019/02/msg00022.html).