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 :

Security fixes :

- a logic error was found in the do_setlk() function of
the Linux kernel Network File System (NFS)
implementation. If a signal interrupted a lock request,
the local POSIX lock was incorrectly created. This could
cause a denial of service on the NFS server if a file
descriptor was closed before its corresponding lock
request returned. (CVE-2008-4307, Important)

- a deficiency was found in the Linux kernel system call
auditing implementation on 64-bit systems. This could
allow a local, unprivileged user to circumvent a system
call audit configuration, if that configuration filtered
based on the 'syscall' number or arguments.
(CVE-2009-0834, Important)

- Chris Evans reported a deficiency in the Linux kernel
signals implementation. The clone() system call permits
the caller to indicate the signal it wants to receive
when its child exits. When clone() is called with the
CLONE_PARENT flag, it permits the caller to clone a new
child that shares the same parent as itself, enabling
the indicated signal to be sent to the caller's parent
(instead of the caller), even if the caller's parent has
different real and effective user IDs. This could lead
to a denial of service of the parent. (CVE-2009-0028,
Moderate)

- the sock_getsockopt() function in the Linux kernel did
not properly initialize a data structure that can be
directly returned to user-space when the getsockopt()
function is called with SO_BSDCOMPAT optname set. This
flaw could possibly lead to memory disclosure.
(CVE-2009-0676, Moderate)

Bug fixes :

- a kernel crash may have occurred for Scientific Linux
4.7 guests if their guest configuration file specified
'vif = [ 'type=ioemu' ]'. This crash only occurred when
starting guests via the 'xm create' command. (BZ#477146)

- a bug in IO-APIC NMI watchdog may have prevented
Scientific Linux 4.7 from being installed on HP ProLiant
DL580 G5 systems. Hangs during installation and 'NMI
received for unknown reason [xx]' errors may have
occurred. (BZ#479184)

- a kernel deadlock on some systems when using netdump
through a network interface that uses the igb driver.
(BZ#480579)

- a possible kernel hang in sys_ptrace() on the
Itanium&reg
architecture, possibly triggered by tracing
a threaded process with strace. (BZ#484904)

- the RHSA-2008:0665 errata only fixed the known problem
with the LSI Logic LSI53C1030 Ultra320 SCSI controller,
for tape devices. Read commands sent to tape devices may
have received incorrect data. This issue may have led to
data corruption. This update includes a fix for all
types of devices. (BZ#487399)

- a missing memory barrier caused a race condition in the
AIO subsystem between the read_events() and
aio_complete() functions. This may have caused a thread
in read_events() to sleep indefinitely, possibly causing
an application hang. (BZ#489935)

- due to a lack of synchronization in the NFS client code,
modifications to some pages (for files on an NFS mounted
file system) made through a region of memory mapped by
mmap() may be lost if the NFS client invalidates its
page cache for particular files. (BZ#490119)

- a NULL pointer dereference in the megaraid_mbox driver
caused a system crash on some systems. (BZ#493420)

- the ext3_symlink() function in the ext3 file system code
used an illegal __GFP_FS allocation inside some
transactions. This may have resulted in a kernel panic
and 'Assertion failure' errors. (BZ#493422)

- do_machine_check() cleared all Machine Check Exception
(MCE) status registers, preventing the BIOS from using
them to determine the cause of certain panics and
errors. (BZ#494915)

- a bug prevented NMI watchdog from initializing on HP
ProLiant DL580 G5 systems. (BZ#497330)

See also :

http://www.nessus.org/u?36aef75a
https://bugzilla.redhat.com/show_bug.cgi?id=477146
https://bugzilla.redhat.com/show_bug.cgi?id=479184
https://bugzilla.redhat.com/show_bug.cgi?id=480579
https://bugzilla.redhat.com/show_bug.cgi?id=484904
https://bugzilla.redhat.com/show_bug.cgi?id=487399
https://bugzilla.redhat.com/show_bug.cgi?id=489935
https://bugzilla.redhat.com/show_bug.cgi?id=490119
https://bugzilla.redhat.com/show_bug.cgi?id=493420
https://bugzilla.redhat.com/show_bug.cgi?id=493422
https://bugzilla.redhat.com/show_bug.cgi?id=494915
https://bugzilla.redhat.com/show_bug.cgi?id=497330

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 4.0
(CVSS2#AV:L/AC:H/Au:N/C:N/I:N/A:C)

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 60577 ()

Bugtraq ID:

CVE ID: CVE-2008-4307
CVE-2009-0028
CVE-2009-0676
CVE-2009-0834