Improper Input Validation Affecting unbound package, versions <1.7.1-1
Threat Intelligence
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Start learning- Snyk IDSNYK-DEBIAN12-UNBOUND-1561387
- published23 Jan 2018
- disclosed23 Jan 2018
Introduced: 23 Jan 2018
CVE-2017-15105 (opens in a new tab)How to fix?
Upgrade Debian:12 unbound to version 1.7.1-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream unbound package and not the unbound package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
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
- https://security-tracker.debian.org/tracker/CVE-2017-15105
- https://unbound.net/downloads/CVE-2017-15105.txt
- https://lists.debian.org/debian-lts-announce/2018/01/msg00039.html
- https://lists.debian.org/debian-lts-announce/2019/02/msg00022.html
- http://www.securityfocus.com/bid/102817
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-15105
- https://usn.ubuntu.com/3673-1/