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Test ID:1.3.6.1.4.1.25623.1.0.871020
Category:Red Hat Local Security Checks
Title:RedHat Update for kernel RHSA-2013:1051-01
Summary:The remote host is missing an update for the 'kernel'; package(s) announced via the referenced advisory.
Description: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 was found in the tcp_read_sock() function in the Linux kernel's
IPv4 TCP/IP protocol suite implementation in the way socket buffers (skb)
were handled. A local, unprivileged user could trigger this issue via a
call to splice(), leading to a denial of service. (CVE-2013-2128,
Moderate)

* Information leak flaws in the Linux kernel could allow a local,
unprivileged user to leak kernel memory to user-space. (CVE-2012-6548,
CVE-2013-2634, CVE-2013-2635, CVE-2013-3222, CVE-2013-3224, CVE-2013-3225,
Low)

* An information leak was found in the Linux kernel's POSIX signals
implementation. A local, unprivileged user could use this flaw to bypass
the Address Space Layout Randomization (ASLR) security feature.
(CVE-2013-0914, Low)

* A format string flaw was found in the ext3_msg() function in the Linux
kernel's ext3 file system implementation. A local user who is able to mount
an ext3 file system could use this flaw to cause a denial of service or,
potentially, escalate their privileges. (CVE-2013-1848, Low)

* A format string flaw was found in the b43_do_request_fw() function in the
Linux kernel's b43 driver implementation. A local user who is able to
specify the 'fwpostfix' b43 module parameter could use this flaw to cause a
denial of service or, potentially, escalate their privileges.
(CVE-2013-2852, Low)

* A NULL pointer dereference flaw was found in the Linux kernel's ftrace
and function tracer implementations. A local user who has the CAP_SYS_ADMIN
capability could use this flaw to cause a denial of service.
(CVE-2013-3301, Low)

Red Hat would like to thank Kees Cook for reporting CVE-2013-2852.

This update also fixes several bugs. 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. The system must be rebooted for this
update to take effect.

Affected Software/OS:
kernel on Red Hat Enterprise Linux Desktop (v. 6),
Red Hat Enterprise Linux Server (v. 6),
Red Hat Enterprise Linux Workstation (v. 6)

Solution:
Please Install the Updated Packages.

CVSS Score:
7.2

CVSS Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2012-6548
http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
http://www.openwall.com/lists/oss-security/2013/03/05/13
RedHat Security Advisories: RHSA-2013:1051
http://rhn.redhat.com/errata/RHSA-2013-1051.html
SuSE Security Announcement: openSUSE-SU-2013:1187 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html
http://www.ubuntu.com/usn/USN-1805-1
http://www.ubuntu.com/usn/USN-1808-1
http://www.ubuntu.com/usn/USN-1809-1
http://www.ubuntu.com/usn/USN-1811-1
http://www.ubuntu.com/usn/USN-1812-1
http://www.ubuntu.com/usn/USN-1813-1
http://www.ubuntu.com/usn/USN-1814-1
Common Vulnerability Exposure (CVE) ID: CVE-2013-0914
http://www.openwall.com/lists/oss-security/2013/03/11/8
SuSE Security Announcement: openSUSE-SU-2013:1971 (Google Search)
http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html
http://www.ubuntu.com/usn/USN-1787-1
http://www.ubuntu.com/usn/USN-1788-1
http://www.ubuntu.com/usn/USN-1792-1
http://www.ubuntu.com/usn/USN-1793-1
http://www.ubuntu.com/usn/USN-1794-1
http://www.ubuntu.com/usn/USN-1795-1
http://www.ubuntu.com/usn/USN-1796-1
http://www.ubuntu.com/usn/USN-1797-1
http://www.ubuntu.com/usn/USN-1798-1
Common Vulnerability Exposure (CVE) ID: CVE-2013-1848
http://www.openwall.com/lists/oss-security/2013/03/20/8
RedHat Security Advisories: RHSA-2013:0928
http://rhn.redhat.com/errata/RHSA-2013-0928.html
RedHat Security Advisories: RHSA-2013:1026
http://rhn.redhat.com/errata/RHSA-2013-1026.html
SuSE Security Announcement: openSUSE-SU-2013:0925 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
Common Vulnerability Exposure (CVE) ID: CVE-2013-2128
http://www.openwall.com/lists/oss-security/2013/05/29/11
Common Vulnerability Exposure (CVE) ID: CVE-2013-2634
http://www.openwall.com/lists/oss-security/2013/03/20/1
http://www.ubuntu.com/usn/USN-1829-1
Common Vulnerability Exposure (CVE) ID: CVE-2013-2635
Common Vulnerability Exposure (CVE) ID: CVE-2013-2852
Debian Security Information: DSA-2766 (Google Search)
http://www.debian.org/security/2013/dsa-2766
http://www.openwall.com/lists/oss-security/2013/06/06/13
RedHat Security Advisories: RHSA-2013:1450
http://rhn.redhat.com/errata/RHSA-2013-1450.html
SuSE Security Announcement: SUSE-SU-2013:1473 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2013-09/msg00003.html
http://www.ubuntu.com/usn/USN-1899-1
http://www.ubuntu.com/usn/USN-1900-1
http://www.ubuntu.com/usn/USN-1914-1
http://www.ubuntu.com/usn/USN-1915-1
http://www.ubuntu.com/usn/USN-1916-1
http://www.ubuntu.com/usn/USN-1917-1
http://www.ubuntu.com/usn/USN-1918-1
http://www.ubuntu.com/usn/USN-1919-1
http://www.ubuntu.com/usn/USN-1920-1
http://www.ubuntu.com/usn/USN-1930-1
Common Vulnerability Exposure (CVE) ID: CVE-2013-3222
http://lists.fedoraproject.org/pipermail/package-announce/2013-April/103750.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/104480.html
https://lkml.org/lkml/2013/4/14/107
http://www.openwall.com/lists/oss-security/2013/04/14/3
SuSE Security Announcement: SUSE-SU-2013:1182 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00016.html
http://www.ubuntu.com/usn/USN-1837-1
Common Vulnerability Exposure (CVE) ID: CVE-2013-3224
Common Vulnerability Exposure (CVE) ID: CVE-2013-3225
Common Vulnerability Exposure (CVE) ID: CVE-2013-3301
http://www.openwall.com/lists/oss-security/2013/04/15/1
http://www.ubuntu.com/usn/USN-1834-1
http://www.ubuntu.com/usn/USN-1835-1
http://www.ubuntu.com/usn/USN-1836-1
http://www.ubuntu.com/usn/USN-1838-1
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