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Status published
High
CVE-2020-12663
Unbound before 1.10.1 has an infinite loop via malformed DNS...
Vulnerability Description
Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://nlnetlabs.nl/downloads/unbound/CVE-2020-12662_2020-12663.txt
- http://www.openwall.com/lists/oss-security/2020/05/19/5
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F5NFROI2OMCZLYRTCNGHGO3TUD32LCIQ/
- https://www.debian.org/security/2020/dsa-4694
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YJ42N2HBZ3DXMSEC56SWIIOFQGOS5M7I/
- https://usn.ubuntu.com/4374-1/
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00069.html
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00067.html
- https://security.FreeBSD.org/advisories/FreeBSD-SA-20:19.unbound.asc
- https://lists.debian.org/debian-lts-announce/2021/02/msg00017.html
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Affected Vendor
nlnetlabs
View all reports →Affected Software
unbound, debian linux, leap, ubuntu linux, fedora
Vulnerable Versions:
0, 9.0, 10.0, 15.1, 15.2, 18.04, 19.10, 20.04, 31, 32
Timeline
Official Publish:
May 19th, 2020
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.