Vulnerability Details : CVE-2020-14312
A flaw was found in the default configuration of dnsmasq, as shipped with Fedora versions prior to 31 and in all versions Red Hat Enterprise Linux, where it listens on any interface and accepts queries from addresses outside of its local subnet. In particular, the option `local-service` is not enabled. Running dnsmasq in this manner may inadvertently make it an open resolver accessible from any address on the internet. This flaw allows an attacker to conduct a Distributed Denial of Service (DDoS) against other systems.
Vulnerability category: BypassGain privilegeDenial of service
Products affected by CVE-2020-14312
- cpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-14312
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 25 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-14312
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
5.9
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
2.2
|
3.6
|
NIST |
CWE ids for CVE-2020-14312
-
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.Assigned by: secalert@redhat.com (Secondary)
References for CVE-2020-14312
-
https://bugzilla.redhat.com/show_bug.cgi?id=1851342
1851342 – (CVE-2020-14312) CVE-2020-14312 dnsmasq: insecure default configuration makes it an open resolverIssue Tracking;Third Party Advisory
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