| 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.
This update fixes the following security issues:
* A flaw in the dccp_rcv_state_process() function could allow a remote
attacker to cause a denial of service, even when the socket was already
closed. (CVE-2011-1093, Important)
* Multiple buffer overflow flaws were found in the Linux kernel's
Management Module Support for Message Passing Technology (MPT) based
controllers. A local, unprivileged user could use these flaws to cause a
denial of service, an information leak, or escalate their privileges.
(CVE-2011-1494, CVE-2011-1495, Important)
* A missing validation of a null-terminated string data structure element
in the bnep_sock_ioctl() function could allow a local user to cause an
information leak or a denial of service. (CVE-2011-1079, Moderate)
* Missing error checking in the way page tables were handled in the Xen
hypervisor implementation could allow a privileged guest user to cause the
host, and the guests, to lock up. (CVE-2011-1166, Moderate)
* A flaw was found in the way the Xen hypervisor implementation checked for
the upper boundary when getting a new event channel port. A privileged
guest user could use this flaw to cause a denial of service or escalate
their privileges. (CVE-2011-1763, Moderate)
* 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 missing initialization flaw in the sco_sock_getsockopt() function could
allow a local, unprivileged user to cause an information leak.
(CVE-2011-1078, Low)
* A missing validation of a null-terminated string data structure element
in the do_replace() function could allow a local user who has the
CAP_NET_ADMIN capability to cause an information leak. (CVE-2011-1080, Low)
* A buffer overflow flaw in the DEC Alpha OSF partition implementation in
the Linux kernel could allow a local attacker to cause an information leak
by mounting a disk that contains specially-crafted partition tables.
(CVE-2011-1163, Low)
* Missing validations of null-terminated string data structure elements in
the do_replace(), compat_do_replace(), do_ipt_get_ctl(), do_ip6t_get_ctl(),
and do_arpt_get_ctl() functions could allow a local user who has the
CAP_NET_ADMIN capability to cause an information leak. (CVE-2011-1170,
CVE-2011-1171, CVE-2011-1172, Low)
* A heap overflow flaw in the Linux kernel's EFI GUID Partition ...
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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