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CentOS 7 RHSA-2018:0052-01 Important: dns Security Update

red hat
Calendar Grey January 2, 2017
Scroller Redhat
Notice of ipa enhancement released for Red Hat Enterprise Linux 7, classified with moderate security implications, resolving various concerns.
An update for ipa is now available for Red Hat Enterprise Linux 7

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

Red Hat Identity Management (IdM) is a centralized authentication, identity management, and authorization solution for both traditional and cloud-based enterprise environments.
Security Fix(es):
* It was discovered that the default IdM password policies that lock out accounts after a certain number of failed login attempts were also applied to host and service accounts. A remote unauthenticated user could use this flaw to cause a denial of service attack against kerberized services. (CVE-2016-7030)
* It was found that IdM's certprofile-mod command did not properly check the user's permissions while modifying certificate profiles. An authenticated, unprivileged attacker could use this flaw to modify profiles to issue certificates with arbitrary naming or key usage information and subsequently use such certificates for other attacks. (CVE-2016-9575)
The CVE-2016-7030 issue was discovered by Petr Spacek (Red Hat) and the CVE-2016-9575 issue was discovered by Liam Campbell (Red Hat).

Topics%20covered

Topics Covered

security advisory denial of service Red Hat Enterprise Linux moderate impact authentication flaw ipa security update

References

https://access.redhat.com/security/cve/CVE-2016-7030 https://access.redhat.com/security/cve/CVE-2016-9575 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: ipa-4.4.0-14.el7_3.1.1.src.rpm
noarch: ipa-client-common-4.4.0-14.el7_3.1.1.noarch.rpm ipa-common-4.4.0-14.el7_3.1.1.noarch.rpm ipa-python-compat-4.4.0-14.el7_3.1.1.noarch.rpm python2-ipaclient-4.4.0-14.el7_3.1.1.noarch.rpm python2-ipalib-4.4.0-14.el7_3.1.1.noarch.rpm
x86_64: ipa-client-4.4.0-14.el7_3.1.1.x86_64.rpm ipa-debuginfo-4.4.0-14.el7_3.1.1.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
noarch: ipa-admintools-4.4.0-14.el7_3.1.1.noarch.rpm ipa-server-common-4.4.0-14.el7_3.1.1.noarch.rpm ipa-server-dns-4.4.0-14.el7_3.1.1.noarch.rpm python2-ipaserver-4.4.0-14.el7_3.1.1.noarch.rpm
x86_64: ipa-debuginfo-4.4.0-14.el7_3.1.1.x86_64.rpm ipa-server-4.4.0-14.el7_3.1.1.x86_64.rpm ipa-server-trust-ad-4.4.0-14.el7_3.1.1.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: ipa-4.4.0-14.el7_3.1.1.src.rpm
noarch: ipa-client-common-4.4.0-14.el7_3.1.1.noarch.rpm ipa-common-4.4.0-14.el7_3.1.1.noarch.rpm ipa-python-compat-4.4.0-14.el7_3.1.1.noarch.rpm python2-ipaclient-4.4.0-14.el7_3.1.1.noarch.rpm python2-ipalib-4.4.0-14.el7_3.1.1.noarch.rpm
x86_64: ipa-client-4.4.0-14.el7_3.1.1.x86_64.rpm ipa-debuginfo-4.4.0-14.el7_3.1.1.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
noarch:

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2017:0001-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2017:0001.html
Issue date: 2017-01-02

Topic

An update for ipa is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory denial of service Red Hat Enterprise Linux moderate impact authentication flaw ipa security update

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Server (v. 7) - aarch64, noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

Bugs Fixed

1370493 - CVE-2016-7030 ipa: DoS attack against kerberized services by abusing password policy

1395311 - CVE-2016-9575 ipa: Insufficient permission check in certprofile-mod

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