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Fencer Intel
medium 4.0

CVE-2014-7821 json

OpenStack Neutron before 2014.1.4 and 2014.2.x before 2014.2.1 allows remote authenticated users to cause a denial of service (crash) via a…

published 11y ago modified 4mo ago also EUVD-2014-7687

cvss
4.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.9%
EPSS 3.9% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

OpenStack Neutron before 2014.1.4 and 2014.2.x before 2014.2.1 allows remote authenticated users to cause a denial of service (crash) via a crafted dns_nameservers value in the DNS configuration.

Patch / fix

  • openstack neutron 2014.1.4, 2014.2.1
  • neutron Debian 14, Debian 13, Debian 12 2014.1.3-6

debian advisories DEBIAN-CVE-2014-7821

  • openstack-neutron openstack 4 2013.2.4-6.el6ost
  • python-neutron openstack 4 2013.2.4-6.el6ost
  • openstack-neutron-ml2 openstack 4 2013.2.4-6.el6ost
  • openstack-neutron-nec openstack 4 2013.2.4-6.el6ost
  • openstack-neutron-ryu openstack 4 2013.2.4-6.el6ost
  • openstack-neutron-cisco openstack 4 2013.2.4-6.el6ost
  • openstack-neutron-hyperv openstack 4 2013.2.4-6.el6ost
  • openstack-neutron-nicira openstack 4 2013.2.4-6.el6ost

red hat advisories RHSA-2015:0044RHSA-2014:1938RHSA-2014:1942

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2014-7821 updated cvss 4.0

openstack-neutron: DoS via maliciously crafted dns_nameservers

  • Red Hat Enterprise Linux OpenStack Platform 4.0 python-neutron 2013.2.4-6.el6ost, openstack-neutron 2013.2.4-6.el6ost, openstack-neutron-ml2 2013.2.4-6.el6ost, openstack-neutron-nec 2013.2.4-6.el6ost, openstack-neutron-ryu 2013.2.4-6.el6ost, openstack-neutron-cisco 2013.2.4-6.el6ost, +12 more
    fixed: vendor fix RHSA-2015:0044
  • Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6 python-neutron 2014.1.3-12.el6ost, openstack-neutron 2014.1.3-12.el6ost, openstack-neutron-ibm 2014.1.3-12.el6ost, openstack-neutron-ml2 2014.1.3-12.el6ost, openstack-neutron-nec 2014.1.3-12.el6ost, openstack-neutron-ryu 2014.1.3-12.el6ost, +17 more
    fixed: vendor fix RHSA-2014:1938
  • Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 python-neutron 2014.1.3-11.el7ost, openstack-neutron 2014.1.3-11.el7ost, openstack-neutron-ibm 2014.1.3-11.el7ost, openstack-neutron-ml2 2014.1.3-11.el7ost, openstack-neutron-nec 2014.1.3-11.el7ost, openstack-neutron-ryu 2014.1.3-11.el7ost, +17 more
    fixed: vendor fix RHSA-2014:1942

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.94% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:N/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-399 Resource Management Errors

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.