| Descripción: | Summary:
The remote host is missing an update for the 'kernel'
package(s) announced via the referenced advisory.
Vulnerability Insight:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security fixes:
* NULL pointer dereference flaws in the r128 driver. Checks to test if the
Concurrent Command Engine state was initialized were missing in private
IOCTL functions. An attacker could use these flaws to cause a local denial
of service or escalate their privileges. (CVE-2009-3620, Important)
* a NULL pointer dereference flaw in the NFSv4 implementation. Several
NFSv4 file locking functions failed to check whether a file had been opened
on the server before performing locking operations on it. A local user on a
system with an NFSv4 share mounted could possibly use this flaw to cause a
denial of service or escalate their privileges. (CVE-2009-3726, Important)
* a flaw in tcf_fill_node(). A certain data structure in this function was
not initialized properly before being copied to user-space. This could lead
to an information leak. (CVE-2009-3612, Moderate)
* unix_stream_connect() did not check if a UNIX domain socket was in the
shutdown state. This could lead to a deadlock. A local, unprivileged user
could use this flaw to cause a denial of service. (CVE-2009-3621, Moderate)
Knowledgebase DOC-20536 has steps to mitigate NULL pointer dereference
flaws.
Bug fixes:
* frequently changing a CPU between online and offline caused a kernel
panic on some systems. (BZ#545583)
* for the LSI Logic LSI53C1030 Ultra320 SCSI controller, read commands sent
could receive incorrect data, preventing correct data transfer. (BZ#529308)
* pciehp could not detect PCI Express hot plug slots on some systems.
(BZ#530383)
* soft lockups: inotify race and contention on dcache_lock. (BZ#533822,
BZ#537019)
* priority ordered lists are now used for threads waiting for a given
mutex. (BZ#533858)
* a deadlock in DLM could cause GFS2 file systems to lock up. (BZ#533859)
* use-after-free bug in the audit subsystem crashed certain systems when
running usermod. (BZ#533861)
* on certain hardware configurations, a kernel panic when the Broadcom
iSCSI offload driver (bnx2i.ko and cnic.ko) was loaded. (BZ#537014)
* qla2xxx: Enabled MSI-X, and correctly handle the module parameter to
control it. This improves performance for certain systems. (BZ#537020)
* system crash when reading the cpuaffinity file on a system. (BZ#537346)
* suspend-resume problems on systems with lots of logical CPUs, e.g. BX-EX.
(BZ#539674)
* off-by-one error in the legacy PCI bus check. (BZ#539675)
* TSC was not made available ...
Description truncated, please see the referenced URL(s) for more information.
Affected Software/OS:
kernel on CentOS 5
Solution:
Please install the updated packages.
CVSS Score:
7.8
CVSS Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:C
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