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The remote Red Hat host is missing one or more security updates.
Updated kernel packages that fix two security issues and several bugs
are now available for Red Hat Enterprise Linux 5.2 Extended Update
The Red Hat Security Response Team has rated this update as having
important security impact. Common Vulnerability Scoring System (CVSS)
base scores, which give detailed severity ratings, are available for
each vulnerability from the CVE links in the References section.
The kernel packages contain the Linux kernel, the core of any Linux
This update fixes the following security issues :
* a NULL pointer dereference flaw was found in the sctp_rcv_ootb()
function in the Linux kernel Stream Control Transmission Protocol
(SCTP) implementation. A remote attacker could send a
specially crafted SCTP packet to a target system, resulting in a
denial of service. (CVE-2010-0008, Important)
* a NULL pointer dereference flaw was found in the
ip6_dst_lookup_tail() function in the Linux kernel. An attacker on the
local network could trigger this flaw by sending IPv6 traffic to a
target system, leading to a system crash (kernel OOPS) if
dst->neighbour is NULL on the target system when receiving an IPv6
packet. (CVE-2010-0437, Important)
This update also fixes the following bugs :
* programs compiled on x86, and that also call
sched_rr_get_interval(), were silently corrupted when run on 64-bit
systems. With this update, when such programs attempt to call
sched_rr_get_interval() on 64-bit systems,
sys32_sched_rr_get_interval() is called instead, which resolves this
* the fix for CVE-2009-4538 provided by RHSA-2010:0079 introduced a
regression, preventing Wake on LAN (WoL) working for network devices
using the Intel PRO/1000 Linux driver, e1000e. Attempting to configure
WoL for such devices resulted in the following error, even when
configuring valid options :
'Cannot set new wake-on-lan settings: Operation not supported not
This update resolves this regression, and WoL now works as expected
for network devices using the e1000e driver. (BZ#559333)
* a number of bugs have been fixed in the copy_user routines for Intel
64 and AMD64 systems, one of which could have possibly led to data
* on some systems, a race condition in the inode-based file event
notifications implementation caused soft lockups and the following
'BUG: warning at fs/inotify.c:181/set_dentry_child_flags()' 'BUG: soft
lockup - CPU#[x] stuck for 10s!'
This update resolves this race condition, and also removes the inotify
debugging code from the kernel, due to race conditions in that code.
* if a program that calls posix_fadvise() were compiled on x86, and
then run on a 64-bit system, that program could experience various
problems, including performance issues and the call to posix_fadvise()
failing, causing the program to not run as expected or even abort.
With this update, when such programs attempt to call posix_fadvise()
on 64-bit systems, sys32_fadvise64() is called instead, which resolves
this issue. This update also fixes other 32-bit system calls that were
mistakenly called on 64-bit systems (including systems running the
kernel-xen kernel). (BZ#569595)
Users should upgrade to these updated packages, which contain
backported patches to correct these issues. The system must be
rebooted for this update to take effect.
See also :
Update the affected packages.
Risk factor :
High / CVSS Base Score : 7.8
CVSS Temporal Score : 6.4
Public Exploit Available : true
Family: Red Hat Local Security Checks
Nessus Plugin ID: 63921 ()
Bugtraq ID: 38185
CVE ID: CVE-2010-0008CVE-2010-0437
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