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Test ID:1.3.6.1.4.1.25623.1.0.871165
Category:Red Hat Local Security Checks
Title:RedHat Update for kernel RHSA-2014:0475-01
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.

* A flaw was found in the way the Linux kernel's netfilter connection
tracking implementation for Datagram Congestion Control Protocol (DCCP)
packets used the skb_header_pointer() function. A remote attacker could use
this flaw to send a specially crafted DCCP packet to crash the system or,
potentially, escalate their privileges on the system. (CVE-2014-2523,
Important)

* A flaw was found in the way the Linux kernel's Adaptec RAID controller
(aacraid) checked permissions of compat IOCTLs. A local attacker could use
this flaw to bypass intended security restrictions. (CVE-2013-6383,
Moderate)

* A flaw was found in the way the handle_rx() function handled large
network packets when mergeable buffers were disabled. A privileged guest
user could use this flaw to crash the host or corrupt QEMU process memory
on the host, which could potentially result in arbitrary code execution on
the host with the privileges of the QEMU process. (CVE-2014-0077, Moderate)

The CVE-2014-0077 issue was discovered by Michael S. Tsirkin of Red Hat.

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.

All kernel users are advised to 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:
10.0

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2013-6383
http://www.openwall.com/lists/oss-security/2013/11/22/5
RedHat Security Advisories: RHSA-2014:0100
http://rhn.redhat.com/errata/RHSA-2014-0100.html
RedHat Security Advisories: RHSA-2014:0285
http://rhn.redhat.com/errata/RHSA-2014-0285.html
http://www.ubuntu.com/usn/USN-2066-1
http://www.ubuntu.com/usn/USN-2067-1
http://www.ubuntu.com/usn/USN-2068-1
http://www.ubuntu.com/usn/USN-2069-1
http://www.ubuntu.com/usn/USN-2070-1
http://www.ubuntu.com/usn/USN-2071-1
http://www.ubuntu.com/usn/USN-2072-1
http://www.ubuntu.com/usn/USN-2073-1
http://www.ubuntu.com/usn/USN-2074-1
http://www.ubuntu.com/usn/USN-2075-1
http://www.ubuntu.com/usn/USN-2076-1
http://www.ubuntu.com/usn/USN-2107-1
http://www.ubuntu.com/usn/USN-2108-1
Common Vulnerability Exposure (CVE) ID: CVE-2014-0077
BugTraq ID: 66678
http://www.securityfocus.com/bid/66678
http://secunia.com/advisories/59386
http://secunia.com/advisories/59599
Common Vulnerability Exposure (CVE) ID: CVE-2014-2523
BugTraq ID: 66279
http://www.securityfocus.com/bid/66279
http://twitter.com/grsecurity/statuses/445496197399461888
http://www.openwall.com/lists/oss-security/2014/03/17/7
http://www.securitytracker.com/id/1029945
http://secunia.com/advisories/57446
http://www.ubuntu.com/usn/USN-2173-1
http://www.ubuntu.com/usn/USN-2174-1
XForce ISS Database: linux-kernel-cve20142523-code-exec(91910)
https://exchange.xforce.ibmcloud.com/vulnerabilities/91910
CopyrightCopyright (C) 2014 Greenbone Networks GmbH

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