Moderate: quagga (SL6)

Synopsis: Moderate: quagga security update
Issue Date: 2012-09-12
CVE Numbers: CVE-2011-3323
CVE-2011-3324
CVE-2011-3325
CVE-2011-3326
CVE-2011-3327
CVE-2012-0249
CVE-2012-0250
CVE-2012-0255
CVE-2012-1820

A heap-based buffer overflow flaw was found in the way the bgpd daemon
processed malformed Extended Communities path attributes. An attacker could
send a specially-crafted BGP message, causing bgpd on a target system to
crash or, possibly, execute arbitrary code with the privileges of the user
running bgpd. The UPDATE message would have to arrive from an explicitly
configured BGP peer, but could have originated elsewhere in the BGP
network. (CVE-2011-3327)

A stack-based buffer overflow flaw was found in the way the ospf6d daemon
processed malformed Link State Update packets. An OSPF router could use
this flaw to crash ospf6d on an adjacent router. (CVE-2011-3323)

A flaw was found in the way the ospf6d daemon processed malformed link
state advertisements. An OSPF neighbor could use this flaw to crash
ospf6d on a target system. (CVE-2011-3324)

A flaw was found in the way the ospfd daemon processed malformed Hello
packets. An OSPF neighbor could use this flaw to crash ospfd on a
target system. (CVE-2011-3325)

A flaw was found in the way the ospfd daemon processed malformed link state
advertisements. An OSPF router in the autonomous system could use this flaw
to crash ospfd on a target system. (CVE-2011-3326)

An assertion failure was found in the way the ospfd daemon processed
certain Link State Update packets. An OSPF router could use this flaw to
cause ospfd on an adjacent router to abort. (CVE-2012-0249)

A buffer overflow flaw was found in the way the ospfd daemon processed
certain Link State Update packets. An OSPF router could use this flaw to
crash ospfd on an adjacent router. (CVE-2012-0250)

Two flaws were found in the way the bgpd daemon processed certain BGP OPEN
messages. A configured BGP peer could cause bgpd on a target system to
abort via a specially-crafted BGP OPEN message. (CVE-2012-0255,
CVE-2012-1820)

After installing the updated packages, the bgpd, ospfd, and ospf6d daemons
will be restarted automatically.

SL6
x86_64
quagga-0.99.15-7.el6_3.2.x86_64.rpm
quagga-contrib-0.99.15-7.el6_3.2.x86_64.rpm
quagga-devel-0.99.15-7.el6_3.2.i686.rpm
quagga-devel-0.99.15-7.el6_3.2.x86_64.rpm
i386
quagga-0.99.15-7.el6_3.2.i686.rpm
quagga-contrib-0.99.15-7.el6_3.2.i686.rpm
quagga-devel-0.99.15-7.el6_3.2.i686.rpm

– Scientific Linux Development Team