7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
49.7%
CentOS Errata and Security Advisory CESA-2011:1065
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
This update fixes the following security issues:
A flaw was found in the way the Xen hypervisor implementation handled
instruction emulation during virtual machine exits. A malicious user-space
process running in an SMP guest could trick the emulator into reading a
different instruction than the one that caused the virtual machine to exit.
An unprivileged guest user could trigger this flaw to crash the host. This
only affects systems with both an AMD x86 processor and the AMD
Virtualization (AMD-V) extensions enabled. (CVE-2011-1780, Important)
A flaw allowed the tc_fill_qdisc() function in the Linux kernelβs packet
scheduler API implementation to be called on built-in qdisc structures. A
local, unprivileged user could use this flaw to trigger a NULL pointer
dereference, resulting in a denial of service. (CVE-2011-2525, Moderate)
A flaw was found in the way space was allocated in the Linux kernelβs
Global File System 2 (GFS2) implementation. If the file system was almost
full, and a local, unprivileged user made an fallocate() request, it could
result in a denial of service. Note: Setting quotas to prevent users from
using all available disk space would prevent exploitation of this flaw.
(CVE-2011-2689, Moderate)
These updated kernel packages include a number of bug fixes and
enhancements. Space precludes documenting all of these changes in this
advisory. Refer to the Red Hat Enterprise Linux 5.7 Technical Notes for
information about the most significant bug fixes and enhancements included
in this update:
All Red Hat Enterprise Linux 5 users are advised to install these updated
packages, which correct these issues. The system must be rebooted for this
update to take effect.
Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2011-September/080026.html
https://lists.centos.org/pipermail/centos-announce/2011-September/080027.html
https://lists.centos.org/pipermail/centos-cr-announce/2011-September/026336.html
https://lists.centos.org/pipermail/centos-cr-announce/2011-September/026337.html
Affected packages:
kernel
kernel-PAE
kernel-PAE-devel
kernel-debug
kernel-debug-devel
kernel-devel
kernel-doc
kernel-headers
kernel-xen
kernel-xen-devel
Upstream details at:
https://access.redhat.com/errata/RHSA-2011:1065
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
CentOS | 5 | i686 | kernel | <Β 2.6.18-274.el5 | kernel-2.6.18-274.el5.i686.rpm |
CentOS | 5 | i686 | kernel-debug | <Β 2.6.18-274.el5 | kernel-debug-2.6.18-274.el5.i686.rpm |
CentOS | 5 | i686 | kernel-debug-devel | <Β 2.6.18-274.el5 | kernel-debug-devel-2.6.18-274.el5.i686.rpm |
CentOS | 5 | i686 | kernel-devel | <Β 2.6.18-274.el5 | kernel-devel-2.6.18-274.el5.i686.rpm |
CentOS | 5 | noarch | kernel-doc | <Β 2.6.18-274.el5 | kernel-doc-2.6.18-274.el5.noarch.rpm |
CentOS | 5 | i386 | kernel-headers | <Β 2.6.18-274.el5 | kernel-headers-2.6.18-274.el5.i386.rpm |
CentOS | 5 | i686 | kernel-pae | <Β 2.6.18-274.el5 | kernel-PAE-2.6.18-274.el5.i686.rpm |
CentOS | 5 | i686 | kernel-pae-devel | <Β 2.6.18-274.el5 | kernel-PAE-devel-2.6.18-274.el5.i686.rpm |
CentOS | 5 | i686 | kernel-xen | <Β 2.6.18-274.el5 | kernel-xen-2.6.18-274.el5.i686.rpm |
CentOS | 5 | i686 | kernel-xen-devel | <Β 2.6.18-274.el5 | kernel-xen-devel-2.6.18-274.el5.i686.rpm |
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
49.7%