Scientific Linux Security Update : kernel on SL5.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 :

- a missing capability check was found in the Linux kernel
do_change_type routine. This could allow a local
unprivileged user to gain privileged access or cause a
denial of service. (CVE-2008-2931, Important)

- a flaw was found in the Linux kernel Direct-IO
implementation. This could allow a local unprivileged
user to cause a denial of service. (CVE-2007-6716,
Important)

- Tobias Klein reported a missing check in the Linux
kernel Open Sound System (OSS) implementation. This
deficiency could lead to a possible information leak.
(CVE-2008-3272, Moderate)

- a deficiency was found in the Linux kernel virtual
filesystem (VFS) implementation. This could allow a
local unprivileged user to attempt file creation within
deleted directories, possibly causing a denial of
service. (CVE-2008-3275, Moderate)

- a flaw was found in the Linux kernel tmpfs
implementation. This could allow a local unprivileged
user to read sensitive information from the kernel.
(CVE-2007-6417, Moderate)

Bug fixes :

- when copying a small IPoIB packet from the original skb
it was received in to a new, smaller skb, all fields in
the new skb were not initialized. This may have caused a
kernel oops.

- previously, data may have been written beyond the end of
an array, causing memory corruption on certain systems,
resulting in hypervisor crashes during context
switching.

- a kernel crash may have occurred on heavily-used Samba
servers after 24 to 48 hours of use.

- under heavy memory pressure, pages may have been swapped
out from under the SGI Altix XPMEM driver, causing
silent data corruption in the kernel.

- the ixgbe driver is untested, but support was advertised
for the Intel 82598 network card. If this card was
present when the ixgbe driver was loaded, a NULL pointer
dereference and a panic occurred.

- on certain systems, if multiple InfiniBand queue pairs
simultaneously fell into an error state, an overrun may
have occurred, stopping traffic.

- with bridging, when forward delay was set to zero,
setting an interface to the forwarding state was delayed
by one or possibly two timers, depending on whether STP
was enabled. This may have caused long delays in moving
an interface to the forwarding state. This issue caused
packet loss when migrating virtual machines, preventing
them from being migrated without interrupting
applications.

- on certain multinode systems, IPMI device nodes were
created in reverse order of where they physically
resided.

- process hangs may have occurred while accessing
application data files via asynchronous direct I/O
system calls.

- on systems with heavy lock traffic, a possible deadlock
may have caused anything requiring locks over NFS to
stop, or be very slow. Errors such as 'lockd: server
[IP] not responding, timed out' were logged on client
systems.

- unexpected removals of USB devices may have caused a
NULL pointer dereference in kobject_get_path.

- on Itanium-based systems, repeatedly creating and
destroying Windows guests may have caused Dom0 to crash,
due to the 'XENMEM_add_to_physmap' hypercall, used by
para-virtualized drivers on HVM, being SMP-unsafe.

- when using an MD software RAID, crashes may have
occurred when devices were removed or changed while
being iterated through. Correct locking is now used.

- break requests had no effect when using 'Serial Over
Lan' with the Intel 82571 network card. This issue may
have caused log in problems.

- on Itanium-based systems, module_free() referred the
first parameter before checking it was valid. This may
have caused a kernel panic when exiting SystemTap.

See also :

http://www.nessus.org/u?cb4a2be0

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.2
(CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C)

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 60477 ()

Bugtraq ID:

CVE ID: CVE-2007-6417
CVE-2007-6716
CVE-2008-2931
CVE-2008-3272
CVE-2008-3275