7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.8 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
0.013 Low
EPSS
Percentile
85.6%
CentOS Errata and Security Advisory CESA-2012:0007
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
This update fixes the following security issues:
A buffer overflow flaw was found in the way the Linux kernelâs XFS file
system implementation handled links with overly long path names. A local,
unprivileged user could use this flaw to cause a denial of service or
escalate their privileges by mounting a specially-crafted disk.
(CVE-2011-4077, Important)
The fix for CVE-2011-2482 provided by RHSA-2011:1212 introduced a
regression: on systems that do not have Security-Enhanced Linux (SELinux)
in Enforcing mode, a socket lock race could occur between sctp_rcv() and
sctp_accept(). A remote attacker could use this flaw to cause a denial of
service. By default, SELinux runs in Enforcing mode on Red Hat Enterprise
Linux 5. (CVE-2011-4348, Important)
The proc file system could allow a local, unprivileged user to obtain
sensitive information or possibly cause integrity issues. (CVE-2011-1020,
Moderate)
A missing validation flaw was found in the Linux kernelâs m_stop()
implementation. A local, unprivileged user could use this flaw to trigger a
denial of service. (CVE-2011-3637, Moderate)
A flaw was found in the Linux kernelâs Journaling Block Device (JBD).
A local attacker could use this flaw to crash the system by mounting a
specially-crafted ext3 or ext4 disk. (CVE-2011-4132, Moderate)
A flaw was found in the Linux kernelâs encode_share_access()
implementation. A local, unprivileged user could use this flaw to trigger a
denial of service by creating a regular file on an NFSv4 (Network File
System version 4) file system via mknod(). (CVE-2011-4324, Moderate)
A flaw was found in the Linux kernelâs NFS implementation. A local,
unprivileged user could use this flaw to cause a denial of service.
(CVE-2011-4325, Moderate)
A missing boundary check was found in the Linux kernelâs HFS file system
implementation. A local attacker could use this flaw to cause a denial of
service or escalate their privileges by mounting a specially-crafted disk.
(CVE-2011-4330, Moderate)
Red Hat would like to thank Kees Cook for reporting CVE-2011-1020, and
Clement Lecigne for reporting CVE-2011-4330.
This update also fixes several bugs and adds one enhancement. Documentation
for these changes will be available shortly from the Technical Notes
document linked to in the References section.
Users should upgrade to these updated packages, which contain backported
patches to correct these issues, and fix the bugs and add the enhancement
noted in the Technical Notes. The system must be rebooted for this update
to take effect.
Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2012-January/080532.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-2012:0007
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
CentOS | 5 | i686 | kernel | <Â 2.6.18-274.17.1.el5 | kernel-2.6.18-274.17.1.el5.i686.rpm |
CentOS | 5 | i686 | kernel-debug | <Â 2.6.18-274.17.1.el5 | kernel-debug-2.6.18-274.17.1.el5.i686.rpm |
CentOS | 5 | i686 | kernel-debug-devel | <Â 2.6.18-274.17.1.el5 | kernel-debug-devel-2.6.18-274.17.1.el5.i686.rpm |
CentOS | 5 | i686 | kernel-devel | <Â 2.6.18-274.17.1.el5 | kernel-devel-2.6.18-274.17.1.el5.i686.rpm |
CentOS | 5 | noarch | kernel-doc | <Â 2.6.18-274.17.1.el5 | kernel-doc-2.6.18-274.17.1.el5.noarch.rpm |
CentOS | 5 | i386 | kernel-headers | <Â 2.6.18-274.17.1.el5 | kernel-headers-2.6.18-274.17.1.el5.i386.rpm |
CentOS | 5 | i686 | kernel-pae | <Â 2.6.18-274.17.1.el5 | kernel-PAE-2.6.18-274.17.1.el5.i686.rpm |
CentOS | 5 | i686 | kernel-pae-devel | <Â 2.6.18-274.17.1.el5 | kernel-PAE-devel-2.6.18-274.17.1.el5.i686.rpm |
CentOS | 5 | i686 | kernel-xen | <Â 2.6.18-274.17.1.el5 | kernel-xen-2.6.18-274.17.1.el5.i686.rpm |
CentOS | 5 | i686 | kernel-xen-devel | <Â 2.6.18-274.17.1.el5 | kernel-xen-devel-2.6.18-274.17.1.el5.i686.rpm |
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.8 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
0.013 Low
EPSS
Percentile
85.6%