CVE-2020-14312
Last modified
CVE-2020-14312 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. 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. EPSS estimates a 1.23% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Fedoraproject | Fedora | < 31 |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1851342Issue Tracking, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1851342Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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