DEBIAN-CVE-2020-14312
Record from OSV · Published February 6, 2021
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.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| dnsmasq | Debian:14 | 2.69-1 |
| dnsmasq | Debian:13 | 2.69-1 |
| dnsmasq | Debian:12 | 2.69-1 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | dnsmasq | 0 |
| Debian:13 | dnsmasq | 0 |
| Debian:12 | dnsmasq | 0 |
Timeline
- Feb 6, 2021 CVE Published
- Oct 26, 2026 CVE Updated
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