[RHSA-2017:0794-01] Moderate: quagga security and bug fix update

[news 28]

-----BEGIN PGP SIGNED MESSAGE-----

Hash: SHA1

 

=====================================================================

Red Hat Security Advisory

 

Synopsis: Moderate: quagga security and bug fix update

Advisory ID: RHSA-2017:0794-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2017-0794.html

Issue date: 2017-03-21

CVE Names: CVE-2013-2236 CVE-2016-1245 CVE-2016-2342

CVE-2016-4049 CVE-2017-5495

=====================================================================

 

1. Summary:

 

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.

 

2. Relevant releases/architectures:

 

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

 

3. Description:

 

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.

 

4. 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

 

After installing the updated packages, the bgpd daemon must be restarted

for the update to take effect.

 

5. Bugs fixed (https://bugzilla.redhat.com/):

 

674862 - Add missing man pages in quagga package

770731 - Interface prefix advertisement declaration prevents ospf6d from starting

839620 - /etc/sysconfig/quagga defines QCONFDIR, init scripts do not use it

842308 - quagga daemon pidfiles remain after daemons are stopped

862826 - Correct spec to add watchquagga

981124 - CVE-2013-2236 Quagga: OSPFD Potential remote code exec (stack based buffer overflow)

1316571 - CVE-2016-2342 quagga: VPNv4 NLRI parser memcpys to stack on unchecked length

1331372 - CVE-2016-4049 quagga: denial of service vulnerability in BGP routing daemon

1386109 - CVE-2016-1245 quagga: Buffer Overflow in IPv6 RA handling

1416013 - CVE-2017-5495 quagga: Telnet interface input buffer allocates unbounded amounts of memory

 

6. Package List:

 

Red Hat Enterprise Linux Server (v. 6):

 

Source:

quagga-0.99.15-14.el6.src.rpm

 

i386:

quagga-0.99.15-14.el6.i686.rpm

quagga-debuginfo-0.99.15-14.el6.i686.rpm

 

ppc64:

quagga-0.99.15-14.el6.ppc64.rpm

quagga-debuginfo-0.99.15-14.el6.ppc64.rpm

 

s390x:

quagga-0.99.15-14.el6.s390x.rpm

quagga-debuginfo-0.99.15-14.el6.s390x.rpm

 

x86_64:

quagga-0.99.15-14.el6.x86_64.rpm

quagga-debuginfo-0.99.15-14.el6.x86_64.rpm

 

Red Hat Enterprise Linux Server Optional (v. 6):

 

i386:

quagga-contrib-0.99.15-14.el6.i686.rpm

quagga-debuginfo-0.99.15-14.el6.i686.rpm

quagga-devel-0.99.15-14.el6.i686.rpm

 

ppc64:

quagga-contrib-0.99.15-14.el6.ppc64.rpm

quagga-debuginfo-0.99.15-14.el6.ppc.rpm

quagga-debuginfo-0.99.15-14.el6.ppc64.rpm

quagga-devel-0.99.15-14.el6.ppc.rpm

quagga-devel-0.99.15-14.el6.ppc64.rpm

 

s390x:

quagga-contrib-0.99.15-14.el6.s390x.rpm

quagga-debuginfo-0.99.15-14.el6.s390.rpm

quagga-debuginfo-0.99.15-14.el6.s390x.rpm

quagga-devel-0.99.15-14.el6.s390.rpm

quagga-devel-0.99.15-14.el6.s390x.rpm

 

x86_64:

quagga-contrib-0.99.15-14.el6.x86_64.rpm

quagga-debuginfo-0.99.15-14.el6.i686.rpm

quagga-debuginfo-0.99.15-14.el6.x86_64.rpm

quagga-devel-0.99.15-14.el6.i686.rpm

quagga-devel-0.99.15-14.el6.x86_64.rpm

 

Red Hat Enterprise Linux Workstation (v. 6):

 

Source:

quagga-0.99.15-14.el6.src.rpm

 

i386:

quagga-0.99.15-14.el6.i686.rpm

quagga-debuginfo-0.99.15-14.el6.i686.rpm

 

x86_64:

quagga-0.99.15-14.el6.x86_64.rpm

quagga-debuginfo-0.99.15-14.el6.x86_64.rpm

 

Red Hat Enterprise Linux Workstation Optional (v. 6):

 

i386:

quagga-contrib-0.99.15-14.el6.i686.rpm

quagga-debuginfo-0.99.15-14.el6.i686.rpm

quagga-devel-0.99.15-14.el6.i686.rpm

 

x86_64:

quagga-contrib-0.99.15-14.el6.x86_64.rpm

quagga-debuginfo-0.99.15-14.el6.i686.rpm

quagga-debuginfo-0.99.15-14.el6.x86_64.rpm

quagga-devel-0.99.15-14.el6.i686.rpm

quagga-devel-0.99.15-14.el6.x86_64.rpm

 

These packages are GPG signed by Red Hat for security. Our key and

details on how to verify the signature are available from

https://access.redhat.com/security/team/key/

 

7. References:

 

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

https://access.redhat.com/security/updates/classification/#moderate

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2017 Red Hat, Inc.

-----BEGIN PGP SIGNATURE-----

Version: GnuPG v1

 

iD8DBQFY0PZlXlSAg2UNWIIRAk04AJ9quLI5264pSVvfyo8UnOkIRLPkxgCePk5v

hgFzQjA6W9PSi1maCzaBHug=

=Wvx0

-----END PGP SIGNATURE-----

 

 

--