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.
References
Link Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1851342 Issue Tracking Third Party Advisory
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: redhat

Published: 2021-02-05T23:16:33

Updated: 2021-02-05T23:16:33

Reserved: 2020-06-17T00:00:00


Link: CVE-2020-14312

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2021-02-06T00:15:12.437

Modified: 2022-07-25T11:19:32.100


Link: CVE-2020-14312

JSON object: View

cve-icon Redhat Information

No data.