Scientific Linux Security Update : kernel on SL4.x i386/x86_64

This script is Copyright (C) 2012 Tenable Network Security, Inc.


Synopsis :

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

Description :

CVE-2005-4881 kernel: netlink: fix numerous padding memleaks

CVE-2009-3228 kernel: tc: uninitialised kernel memory leak

This update fixes the following security issues :

- multiple, missing initialization flaws were found in the
Linux kernel. Padding data in several core network
structures was not initialized properly before being
sent to user-space. These flaws could lead to
information leaks. (CVE-2005-4881, CVE-2009-3228,
Moderate)

This update also fixes the following bugs :

- a packet duplication issue was fixed via the
RHSA-2008:0665 update
however, the fix introduced a
problem for systems using network bonding: Backup slaves
were unable to receive ARP packets. When using network
bonding in the 'active-backup' mode and with the
'arp_validate=3' option, the bonding driver considered
such backup slaves as being down (since they were not
receiving ARP packets), preventing successful failover
to these devices. (BZ#519384)

- due to insufficient memory barriers in the network code,
a process sleeping in select() may have missed
notifications about new data. In rare cases, this bug
may have caused a process to sleep forever. (BZ#519386)

- the driver version number in the ata_piix driver was not
changed between Scientific Linux 4.7 and Scientific
Linux 4.8, even though changes had been made between
these releases. This could have prevented the driver
from loading on systems that check driver versions, as
this driver appeared older than it was. (BZ#519389)

- a bug in nlm_lookup_host() could have led to
un-reclaimed locks on file systems, resulting in the
umount command failing. This bug could have also
prevented NFS services from being relocated correctly in
clustered environments. (BZ#519656)

- the data buffer ethtool_get_strings() allocated, for the
igb driver, was smaller than the amount of data that was
copied in igb_get_strings(), because of a miscalculation
in IGB_QUEUE_STATS_LEN, resulting in memory corruption.
This bug could have led to a kernel panic. (BZ#522738)

- in some situations, write operations to a TTY device
were blocked even when the O_NONBLOCK flag was used. A
reported case of this issue occurred when a single TTY
device was opened by two users (one using blocking mode,
and the other using non-blocking mode). (BZ#523930)

- a deadlock was found in the cciss driver. In rare cases,
this caused an NMI lockup during boot. Messages such as
'cciss: controller cciss[x] failed, stopping.' and
'cciss[x]: controller not responding.' may have been
displayed on the console. (BZ#525725)

- on 64-bit PowerPC systems, a rollover bug in the ibmveth
driver could have caused a kernel panic. In a reported
case, this panic occurred on a system with a large
uptime and under heavy network load. (BZ#527225)

The system must be rebooted for this update to take effect.

See also :

http://www.nessus.org/u?f701e30d
https://bugzilla.redhat.com/show_bug.cgi?id=519384
https://bugzilla.redhat.com/show_bug.cgi?id=519386
https://bugzilla.redhat.com/show_bug.cgi?id=519389
https://bugzilla.redhat.com/show_bug.cgi?id=519656
https://bugzilla.redhat.com/show_bug.cgi?id=522738
https://bugzilla.redhat.com/show_bug.cgi?id=523930
https://bugzilla.redhat.com/show_bug.cgi?id=525725
https://bugzilla.redhat.com/show_bug.cgi?id=527225

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 4.9
(CVSS2#AV:L/AC:L/Au:N/C:C/I:N/A:N)

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 60682 ()

Bugtraq ID:

CVE ID: CVE-2005-4881
CVE-2009-3228