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Fencer Intel
high 7.5

CVE-2016-7030 json

FreeIPA uses a default password policy that locks an account after 5 unsuccessful authentication attempts, which allows remote attackers to…

published 2017-08-28 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-7915

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.7%
EPSS 4.7% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

FreeIPA uses a default password policy that locks an account after 5 unsuccessful authentication attempts, which allows remote attackers to cause a denial of service by locking out the account in which system services run on.

Patch / fix

  • freeipa Debian 14, Debian 13, Debian 12 4.4.4-1

debian advisories DEBIAN-CVE-2016-7030

  • freeipa Ubuntu Pro 14.04 LTS 3.3.4-0ubuntu3.1+esm1
  • freeipa Ubuntu Pro 16.04 LTS 4.3.1-0ubuntu1+esm1

ubuntu advisories UBUNTU-CVE-2016-7030

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ipa RHEL 7 4.4.0-14.el7_3.1.1
  • ipa-client RHEL 7 4.4.0-14.el7_3.1.1
  • ipa-common RHEL 7 4.4.0-14.el7_3.1.1
  • ipa-server RHEL 7 4.4.0-14.el7_3.1.1
  • ipa-admintools RHEL 7 4.4.0-14.el7_3.1.1
  • ipa-server-dns RHEL 7 4.4.0-14.el7_3.1.1
  • python2-ipalib RHEL 7 4.4.0-14.el7_3.1.1
  • ipa-client-common RHEL 7 4.4.0-14.el7_3.1.1

red hat advisories RHSA-2017:0001

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-2016-7030 updated cvss 7.5

ipa: DoS attack against kerberized services by abusing password policy

  • Red Hat Enterprise Linux 6 ipa, ipa-client, ipa-python, ipa-server, ipa-admintools, ipa-server-selinux, +1 more
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client (v. 7) ipa 4.4.0-14.el7_3.1.1, ipa-client 4.4.0-14.el7_3.1.1, ipa-common 4.4.0-14.el7_3.1.1, python2-ipalib 4.4.0-14.el7_3.1.1, ipa-client-common 4.4.0-14.el7_3.1.1, ipa-python-compat 4.4.0-14.el7_3.1.1, +1 more Red Hat Enterprise Linux Client Optional (v. 7) ipa-server 4.4.0-14.el7_3.1.1, ipa-admintools 4.4.0-14.el7_3.1.1, ipa-server-dns 4.4.0-14.el7_3.1.1, ipa-server-common 4.4.0-14.el7_3.1.1, python2-ipaserver 4.4.0-14.el7_3.1.1, ipa-server-trust-ad 4.4.0-14.el7_3.1.1 Red Hat Enterprise Linux ComputeNode (v. 7) ipa 4.4.0-14.el7_3.1.1, ipa-client 4.4.0-14.el7_3.1.1, ipa-common 4.4.0-14.el7_3.1.1, python2-ipalib 4.4.0-14.el7_3.1.1, ipa-client-common 4.4.0-14.el7_3.1.1, ipa-python-compat 4.4.0-14.el7_3.1.1, +1 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) ipa-server 4.4.0-14.el7_3.1.1, ipa-admintools 4.4.0-14.el7_3.1.1, ipa-server-dns 4.4.0-14.el7_3.1.1, ipa-server-common 4.4.0-14.el7_3.1.1, python2-ipaserver 4.4.0-14.el7_3.1.1, ipa-server-trust-ad 4.4.0-14.el7_3.1.1 Red Hat Enterprise Linux Server (v. 7) ipa 4.4.0-14.el7_3.1.1, ipa-client 4.4.0-14.el7_3.1.1, ipa-common 4.4.0-14.el7_3.1.1, ipa-server 4.4.0-14.el7_3.1.1, ipa-admintools 4.4.0-14.el7_3.1.1, ipa-server-dns 4.4.0-14.el7_3.1.1, +7 more Red Hat Enterprise Linux Workstation (v. 7) ipa 4.4.0-14.el7_3.1.1, ipa-client 4.4.0-14.el7_3.1.1, ipa-common 4.4.0-14.el7_3.1.1, ipa-server 4.4.0-14.el7_3.1.1, ipa-admintools 4.4.0-14.el7_3.1.1, ipa-server-dns 4.4.0-14.el7_3.1.1, +7 more
    fixed: vendor fix RHSA-2017:0001

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

4.74% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-255 Credentials 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.