RHEL 6 : quagga (RHSA-2017:0794)

High Nessus Plugin ID 97885

Synopsis

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

Description

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.

Solution

Update the affected packages.

See Also

https://access.redhat.com/errata/RHSA-2017:0794

https://access.redhat.com/security/cve/cve-2013-2236

https://access.redhat.com/security/cve/cve-2016-1245

https://access.redhat.com/security/cve/cve-2016-2342

https://access.redhat.com/security/cve/cve-2016-4049

https://access.redhat.com/security/cve/cve-2017-5495

Plugin Details

Severity: High

ID: 97885

File Name: redhat-RHSA-2017-0794.nasl

Version: 3.5

Type: local

Agent: unix

Published: 2017/03/22

Updated: 2018/11/10

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.8

Temporal Score: 5.8

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 8.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:quagga, p-cpe:/a:redhat:enterprise_linux:quagga-contrib, p-cpe:/a:redhat:enterprise_linux:quagga-debuginfo, p-cpe:/a:redhat:enterprise_linux:quagga-devel, cpe:/o:redhat:enterprise_linux:6

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

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2017/03/21

Reference Information

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

RHSA: 2017:0794