| Description: | Description:
The remote host is missing updates announced in
advisory RHSA-2011:0500.
The kernel-rt packages contain the Linux kernel, the core of any Linux
operating system.
This update fixes the following security issues:
* A race condition in the way the Linux kernel's InfiniBand implementation
set up new connections could allow a remote user to cause a denial of
service. (CVE-2011-0695, Important)
* An integer signedness flaw in drm_modeset_ctl() could allow a local,
unprivileged user to cause a denial of service or escalate their
privileges. (CVE-2011-1013, Important)
* A flaw in dccp_rcv_state_process() could allow a remote attacker to cause
a denial of service, even when the socket was already closed.
(CVE-2011-1093, Important)
* A missing validation of a null-terminated string data structure element
in bnep_sock_ioctl() could allow a local user to cause an information leak
or a denial of service. (CVE-2011-1079, Moderate)
* A flaw in the Linux kernel's Event Poll (epoll) implementation could
allow a local, unprivileged user to cause a denial of service.
(CVE-2011-1082, Moderate)
* A missing initialization flaw in the XFS file system implementation could
lead to an information leak. (CVE-2011-0711, Low)
* 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 validation check in the Linux kernel's mac_partition()
implementation, used for supporting file systems created on Mac OS
operating systems, could allow a local attacker to cause a denial of
service by mounting a disk that contains specially-crafted partitions.
(CVE-2011-1010, Low)
* A flaw in dev_load() could allow a local user who has the CAP_NET_ADMIN
capability to load arbitrary modules from /lib/modules/, instead of only
netdev modules. (CVE-2011-1019, Low)
* A missing initialization flaw in sco_sock_getsockopt_old() could allow a
local, unprivileged user to cause an information leak. (CVE-2011-1078, 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, CVE-2011-1080, Low)
Red Hat would like to thank Jens Kuehnel for reporting CVE-2011-0695
Vasiliy Kulikov for reporting CVE-2011-1079, CVE-2011-1019, CVE-2011-1078,
CVE-2011-1170, CVE-2011-1171, CVE-2011-1172, and CVE-2011-1080
Nelson
Elhage for reporting CVE-2011-1082
Dan Rosenberg for reporting
CVE-2011-0711
Kees Cook for reporting CVE-2011-0726
and Timo Warns for
reporting CVE-2011-1010 and CVE-2011-1163.
This update also fixes various bugs. Documentation for these bug fixes will
be available shortly from the Technical Notes document linked to in the
References section.
Users should upgrade to these updated packages, which upgrade the kernel-rt
kernel to version 2.6.33.9-rt31, and correct these issues. The system must
be rebooted for this update to take effect.
Solution:
Please note that this update is available via
Red Hat Network. To use Red Hat Network, launch the Red
Hat Update Agent with the following command: up2date
http://rhn.redhat.com/errata/RHSA-2011-0500.html
http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_MRG/1.3/html/Technical_Notes/RHSA-2011-0500.html
Risk factor : High
CVSS Score:
7.8
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