RHEL 6 : freeradius (RHSA-2017:1759)

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

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

Description :

An update for freeradius is now available for Red Hat Enterprise Linux
6.

Red Hat Product Security has rated this update as having a security
impact of Important. 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.

FreeRADIUS is a high-performance and highly configurable free Remote
Authentication Dial In User Service (RADIUS) server, designed to allow
centralized authentication and authorization for a network.

Security Fix(es) :

* An out-of-bounds write flaw was found in the way FreeRADIUS server
handled certain attributes in request packets. A remote attacker could
use this flaw to crash the FreeRADIUS server or to execute arbitrary
code in the context of the FreeRADIUS server process by sending a
specially crafted request packet. (CVE-2017-10979)

* An out-of-bounds read and write flaw was found in the way FreeRADIUS
server handled RADIUS packets. A remote attacker could use this flaw
to crash the FreeRADIUS server by sending a specially crafted RADIUS
packet. (CVE-2017-10978)

* Multiple memory leak flaws were found in the way FreeRADIUS server
handled decoding of DHCP packets. A remote attacker could use these
flaws to cause the FreeRADIUS server to consume an increasing amount
of memory resources over time, possibly leading to a crash due to
memory exhaustion, by sending specially crafted DHCP packets.
(CVE-2017-10980, CVE-2017-10981)

* Multiple out-of-bounds read flaws were found in the way FreeRADIUS
server handled decoding of DHCP packets. A remote attacker could use
these flaws to crash the FreeRADIUS server by sending a specially
crafted DHCP request. (CVE-2017-10982, CVE-2017-10983)

Red Hat would like to thank the FreeRADIUS project for reporting these
issues. Upstream acknowledges Guido Vranken as the original reporter
of these issues.

See also :

https://www.redhat.com/security/data/cve/CVE-2017-10978.html
https://www.redhat.com/security/data/cve/CVE-2017-10979.html
https://www.redhat.com/security/data/cve/CVE-2017-10980.html
https://www.redhat.com/security/data/cve/CVE-2017-10981.html
https://www.redhat.com/security/data/cve/CVE-2017-10982.html
https://www.redhat.com/security/data/cve/CVE-2017-10983.html
http://rhn.redhat.com/errata/RHSA-2017-1759.html

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 6.4
(CVSS2#E:U/RL:U/RC:C)
Public Exploit Available : false

Family: Red Hat Local Security Checks

Nessus Plugin ID: 101786 ()

Bugtraq ID:

CVE ID: CVE-2017-10978
CVE-2017-10979
CVE-2017-10980
CVE-2017-10981
CVE-2017-10982
CVE-2017-10983

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