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Vulnerability Details : CVE-2020-12663

Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.
Publish Date : 2020-05-19 Last Update Date : 2021-02-17
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 835

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2020:2414: unbound security update (Important) oval:com.redhat.rhsa:def:20202414 unix
RHSA-2020:2416: unbound security update (Important) oval:com.redhat.rhsa:def:20202416 unix
RHSA-2020:2640: unbound security update (Important) oval:com.redhat.rhsa:def:20202640 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2020-12663

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 18.04 * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 19.10 * * * Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 20.04 * * * Version Details Vulnerabilities
4 OS Debian Debian Linux 9.0 * * * Version Details Vulnerabilities
5 OS Debian Debian Linux 10.0 * * * Version Details Vulnerabilities
6 OS Fedoraproject Fedora 31 * * * Version Details Vulnerabilities
7 OS Fedoraproject Fedora 32 * * * Version Details Vulnerabilities
8 Application Nlnetlabs Unbound * * * * Version Details Vulnerabilities
9 OS Opensuse Leap 15.1 * * * Version Details Vulnerabilities
10 OS Opensuse Leap 15.2 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 3
Debian Debian Linux 2
Fedoraproject Fedora 2
Nlnetlabs Unbound 1
Opensuse Leap 2

- References For CVE-2020-12663 CONFIRM
MLIST [oss-security] 20200519 Unbound - CVE-2020-12662, CVE-2020-12663[email protected]/message/F5NFROI2OMCZLYRTCNGHGO3TUD32LCIQ/
FEDORA FEDORA-2020-3cfd38fefd
DEBIAN DSA-4694[email protected]/message/YJ42N2HBZ3DXMSEC56SWIIOFQGOS5M7I/
FEDORA FEDORA-2020-8e9b62948e
SUSE openSUSE-SU-2020:0912
SUSE openSUSE-SU-2020:0913
MLIST [debian-lts-announce] 20210212 [SECURITY] [DLA 2556-1] unbound1.9 security update

- Metasploit Modules Related To CVE-2020-12663

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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