RHEL 7 : krb5 (RHSA-2018:3071)

Medium Nessus Plugin ID 118523

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

An update for krb5 is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link (s) in the References section.

Kerberos is a network authentication system, which can improve the security of your network by eliminating the insecure practice of sending passwords over the network in unencrypted form. It allows clients and servers to authenticate to each other with the help of a trusted third party, the Kerberos key distribution center (KDC).

Security Fix(es) :

* krb5: null dereference in kadmind or DN container check bypass by supplying special crafted data (CVE-2018-5729)

* krb5: DN container check bypass by supplying special crafted data (CVE-2018-5730)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.6 Release Notes linked from the References section.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?3395ff0b

https://access.redhat.com/errata/RHSA-2018:3071

https://access.redhat.com/security/cve/cve-2018-5729

https://access.redhat.com/security/cve/cve-2018-5730

Plugin Details

Severity: Medium

ID: 118523

File Name: redhat-RHSA-2018-3071.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2018/10/31

Modified: 2018/11/10

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 6.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS v3.0

Base Score: 4.7

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:krb5-debuginfo, p-cpe:/a:redhat:enterprise_linux:krb5-devel, p-cpe:/a:redhat:enterprise_linux:krb5-libs, p-cpe:/a:redhat:enterprise_linux:krb5-pkinit, p-cpe:/a:redhat:enterprise_linux:krb5-server, p-cpe:/a:redhat:enterprise_linux:krb5-server-ldap, p-cpe:/a:redhat:enterprise_linux:krb5-workstation, p-cpe:/a:redhat:enterprise_linux:libkadm5, cpe:/o:redhat:enterprise_linux:7

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Patch Publication Date: 2018/10/30

Reference Information

CVE: CVE-2018-5729, CVE-2018-5730

RHSA: 2018:3071