Oracle Linux 6 : quagga (ELSA-2017-0794)

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


Synopsis :

The remote Oracle Linux host is missing one or more security updates.

Description :

From Red Hat Security Advisory 2017:0794 :

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

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

The quagga packages contain Quagga, the free network-routing software
suite that manages TCP/IP based protocols. Quagga supports the BGP4,
BGP4+, OSPFv2, OSPFv3, RIPv1, RIPv2, and RIPng protocols, and is
intended to be used as a Route Server and Route Reflector.

Security Fix(es) :

* A stack-based buffer overflow flaw was found in the way Quagga
handled IPv6 router advertisement messages. A remote attacker could
use this flaw to crash the zebra daemon resulting in denial of
service. (CVE-2016-1245)

* A stack-based buffer overflow flaw was found in the way the Quagga
BGP routing daemon (bgpd) handled Labeled-VPN SAFI routes data. A
remote attacker could use this flaw to crash the bgpd daemon resulting
in denial of service. (CVE-2016-2342)

* A denial of service flaw was found in the Quagga BGP routing daemon
(bgpd). Under certain circumstances, a remote attacker could send a
crafted packet to crash the bgpd daemon resulting in denial of
service. (CVE-2016-4049)

* A denial of service flaw affecting various daemons in Quagga was
found. A remote attacker could use this flaw to cause the various
Quagga daemons, which expose their telnet interface, to crash.
(CVE-2017-5495)

* A stack-based buffer overflow flaw was found in the way the Quagga
OSPFD daemon handled LSA (link-state advertisement) packets. A remote
attacker could use this flaw to crash the ospfd daemon resulting in
denial of service. (CVE-2013-2236)

Additional Changes :

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 6.9 Release Notes and Red Hat Enterprise Linux 6.9
Technical Notes linked from the References section.

See also :

https://oss.oracle.com/pipermail/el-errata/2017-March/006802.html

Solution :

Update the affected quagga packages.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 6.4
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Oracle Linux Local Security Checks

Nessus Plugin ID: 99073 ()

Bugtraq ID:

CVE ID: CVE-2013-2236
CVE-2016-1245
CVE-2016-2342
CVE-2016-4049
CVE-2017-5495

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