CVEvulnerability
CVE-2019-16866
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2019-10-03
- Last modified
- 2026-10-08
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-755, CWE-908
Description
Unbound before 1.9.4 accesses uninitialized memory, which allows remote attackers to trigger a crash via a crafted NOTIFY query. The source IP address of the query must match an access-control rule.
Affected configurations
• nlnetlabs unbound (< 1.9.4)
• canonical ubuntu linux 19.04
Related
References
- https://github.com/NLnetLabs/unbound/blob/release-1.9.4/doc/Changelog Product, Release Notes
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E65NCWZZB2D75ZIYWPXKMVGSGNYW4JMC/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MLRHE7TQFAOV4MB2ELTOGESZYUL65NUJ/ lists.fedoraproject.org
- https://nlnetlabs.nl/downloads/unbound/CVE-2019-16866.txt Patch, Vendor Advisory
- https://seclists.org/bugtraq/2019/Oct/23 seclists.org
- https://usn.ubuntu.com/4149-1/ Third Party Advisory
- https://www.debian.org/security/2019/dsa-4544 www.debian.org
- https://github.com/NLnetLabs/unbound/blob/release-1.9.4/doc/Changelog Product, Release Notes
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E65NCWZZB2D75ZIYWPXKMVGSGNYW4JMC/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MLRHE7TQFAOV4MB2ELTOGESZYUL65NUJ/ lists.fedoraproject.org
- https://nlnetlabs.nl/downloads/unbound/CVE-2019-16866.txt Patch, Vendor Advisory
- https://seclists.org/bugtraq/2019/Oct/23 seclists.org
- https://usn.ubuntu.com/4149-1/ Third Party Advisory
- https://www.debian.org/security/2019/dsa-4544 www.debian.org