Uncontrolled Recursion Affecting unbound package, versions <1.6.7-1ubuntu2.3
Threat Intelligence
EPSS
1.54% (88th
percentile)
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Test your applications- Snyk ID SNYK-UBUNTU1804-UNBOUND-570214
- published 19 May 2020
- disclosed 19 May 2020
Introduced: 19 May 2020
CVE-2020-12662 Open this link in a new tabHow to fix?
Upgrade Ubuntu:18.04 unbound to version 1.6.7-1ubuntu2.3 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 Ubuntu.
See How to fix? for Ubuntu:18.04 relevant fixed versions and status.
Unbound before 1.10.1 has Insufficient Control of Network Message Volume, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2020-12662
- https://nlnetlabs.nl/downloads/unbound/CVE-2020-12662_2020-12663.txt
- https://security.netapp.com/advisory/ntap-20200702-0006/
- https://www.synology.com/security/advisory/Synology_SA_20_12
- https://www.debian.org/security/2020/dsa-4694
- https://security-tracker.debian.org/tracker/CVE-2020-12662
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YJ42N2HBZ3DXMSEC56SWIIOFQGOS5M7I/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/F5NFROI2OMCZLYRTCNGHGO3TUD32LCIQ/
- https://security.FreeBSD.org/advisories/FreeBSD-SA-20:19.unbound.asc
- http://www.nxnsattack.com
- https://lists.debian.org/debian-lts-announce/2021/02/msg00017.html
- http://www.openwall.com/lists/oss-security/2020/05/19/5
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00067.html
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00069.html
- https://usn.ubuntu.com/4374-1/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F5NFROI2OMCZLYRTCNGHGO3TUD32LCIQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YJ42N2HBZ3DXMSEC56SWIIOFQGOS5M7I/
CVSS Scores
version 3.1