Vulnerability Description
Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nlnetlabs | Unbound | < 1.10.1 |
| Debian | Debian Linux | 9.0 |
| Opensuse | Leap | 15.1 |
| Canonical | Ubuntu Linux | 18.04 |
| Fedoraproject | Fedora | 31 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00067.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00069.htmlMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/05/19/5Mailing ListPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00017.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://nlnetlabs.nl/downloads/unbound/CVE-2020-12662_2020-12663.txtVendor Advisory
- https://security.FreeBSD.org/advisories/FreeBSD-SA-20:19.unbound.ascThird Party Advisory
- https://usn.ubuntu.com/4374-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4694Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00067.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00069.htmlMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/05/19/5Mailing ListPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00017.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2020-12663?
CVE-2020-12663 is a vulnerability with a CVSS score of 7.5 (HIGH). Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.
How severe is CVE-2020-12663?
CVE-2020-12663 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-12663?
Check the references section above for vendor advisories and patch information. Affected products include: Nlnetlabs Unbound, Debian Debian Linux, Opensuse Leap, Canonical Ubuntu Linux, Fedoraproject Fedora.