Scientific Linux Security Update : kernel on SL6.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 :

Security fixes :

- An integer overflow flaw in ib_uverbs_poll_cq() could
allow a local, unprivileged user to cause a denial of
service or escalate their privileges. (CVE-2010-4649,
Important)

- An integer signedness flaw in drm_modeset_ctl() could
allow a local, unprivileged user to cause a denial of
service or escalate their privileges. (CVE-2011-1013,
Important)

- The Radeon GPU drivers in the Linux kernel were missing
sanity checks for the Anti Aliasing (AA) resolve
register values which could allow a local, unprivileged
user to cause a denial of service or escalate their
privileges on systems using a graphics card from the ATI
Radeon R300, R400, or R500 family of cards.
(CVE-2011-1016, Important)

- A flaw in dccp_rcv_state_process() could allow a remote
attacker to cause a denial of service, even when the
socket was already closed. (CVE-2011-1093, Important)

- A flaw in the Linux kernel's Stream Control Transmission
Protocol (SCTP) implementation could allow a remote
attacker to cause a denial of service if the sysctl
'net.sctp.addip_enable' and 'auth_enable' variables were
turned on (they are off by default). (CVE-2011-1573,
Important)

- A memory leak in the inotify_init() system call. In some
cases, it could leak a group, which could allow a local,
unprivileged user to eventually cause a denial of
service. (CVE-2010-4250, Moderate)

- A missing validation of a null-terminated string data
structure element in bnep_sock_ioctl() could allow a
local user to cause an information leak or a denial of
service. (CVE-2011-1079, Moderate)

- An information leak in bcm_connect() in the Controller
Area Network (CAN) Broadcast Manager implementation
could allow a local, unprivileged user to leak kernel
mode addresses in '/proc/net/can-bcm'. (CVE-2010-4565,
Low)

- A flaw was found in the Linux kernel's Integrity
Measurement Architecture (IMA) implementation. When
SELinux was disabled, adding an IMA rule which was
supposed to be processed by SELinux would cause
ima_match_rules() to always succeed, ignoring any
remaining rules. (CVE-2011-0006, Low)

- A missing initialization flaw in the XFS file system
implementation could lead to an information leak.
(CVE-2011-0711, Low)

- Buffer overflow flaws in snd_usb_caiaq_audio_init() and
snd_usb_caiaq_midi_init() could allow a local,
unprivileged user with access to a Native Instruments
USB audio device to cause a denial of service or
escalate their privileges. (CVE-2011-0712, Low)

- The start_code and end_code values in '/proc/[pid]/stat'
were not protected. In certain scenarios, this flaw
could be used to defeat Address Space Layout
Randomization (ASLR). (CVE-2011-0726, Low)

- A flaw in dev_load() could allow a local user who has
the CAP_NET_ADMIN capability to load arbitrary modules
from '/lib/modules/', instead of only netdev modules.
(CVE-2011-1019, Low)

- A flaw in ib_uverbs_poll_cq() could allow a local,
unprivileged user to cause an information leak.
(CVE-2011-1044, Low)

- A missing validation of a null-terminated string data
structure element in do_replace() could allow a local
user who has the CAP_NET_ADMIN capability to cause an
information leak. (CVE-2011-1080, Low)

This update also fixes various bugs.

This update also adds an enhancement.

- This update provides VLAN null tagging support (VLAN ID
0 can be used in tags).

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

See also :

http://www.nessus.org/u?14e371c1

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)