Medium severity5.9NVD Advisory· Published Feb 6, 2021· Updated Jun 17, 2026
CVE-2020-14312
CVE-2020-14312
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.
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Affected products
18- Red Hat/dnsmasqdescription
- Range: <31
- Range: <31 (Fedora), All (RHEL)
- Range: All
- osv-coords13 versionspkg:rpm/opensuse/dnsmasq&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/dnsmasq&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/dnsmasq&distro=openSUSE%20Tumbleweedpkg:rpm/suse/dnsmasq&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Micro%205.0pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Micro%205.1pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1
< 2.86-lp152.7.6.1+ 12 more
- (no CPE)range: < 2.86-lp152.7.6.1
- (no CPE)range: < 2.86-7.14.1
- (no CPE)range: < 2.86-3.1
- (no CPE)range: < 2.86-7.14.1
- (no CPE)range: < 2.86-7.14.1
- (no CPE)range: < 2.86-7.14.1
- (no CPE)range: < 2.86-7.14.1
- (no CPE)range: < 2.86-7.14.1
- (no CPE)range: < 2.86-7.14.1
- (no CPE)range: < 2.86-7.14.1
- (no CPE)range: < 2.86-7.14.1
- (no CPE)range: < 2.86-7.14.1
- (no CPE)range: < 2.86-7.14.1
Patches
Vulnerability mechanics
References
1- bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
News mentions
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