CVE-2017-15105: Input Validation
First published: Tue Jan 23 2018(Updated: )
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.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Nlnetlabs Unbound | <1.6.8 | |
| Debian Debian Linux | =7.0 | |
| Debian Debian Linux | =8.0 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =17.10 | |
| Canonical Ubuntu Linux | =18.04 | |
| debian/unbound | 1.13.1-1+deb11u2 1.13.1-1+deb11u3 1.17.1-2+deb12u2 1.21.1-1 |
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Reference Links
- http://www.securityfocus.com/bid/102817
- https://lists.debian.org/debian-lts-announce/2018/01/msg00039.html
- https://lists.debian.org/debian-lts-announce/2019/02/msg00022.html
- https://unbound.net/downloads/CVE-2017-15105.txt
- https://usn.ubuntu.com/3673-1/
- https://launchpad.net/bugs/cve/CVE-2017-15105
- https://unbound.net/downloads/patch_cve_2017_15105.diff
- https://medium.com/nlnetlabs/the-peculiar-case-of-nsec-processing-using-expanded-wildcard-records-ae8285f236be
- https://security-tracker.debian.org/tracker/CVE-2017-15105
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15105
- https://nvd.nist.gov/vuln/detail/CVE-2017-15105
- https://ubuntu.com/security/CVE-2017-15105
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).
- collector/nvd-index
- agent/type
- collector/launchpad-cve
- source/Launchpad
- agent/author
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/weakness
- agent/severity
- agent/remedy
- agent/description
- agent/first-publish-date
- agent/references
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- agent/tags
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/event
- collector/usn-cve
- source/Ubuntu
- vendor/nlnetlabs
- canonical/nlnetlabs unbound
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/7.0
- version/debian debian linux/8.0
- vendor/canonical
- canonical/canonical ubuntu linux
- version/canonical ubuntu linux/14.04
- version/canonical ubuntu linux/16.04
- version/canonical ubuntu linux/17.10
- version/canonical ubuntu linux/18.04
- package-manager/debian