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Test ID:1.3.6.1.4.1.25623.1.0.871467
Category:Red Hat Local Security Checks
Title:RedHat Update for kernel RHSA-2015:1978-01
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 VFS subsystem handled file
system locks. A local, unprivileged user could use this flaw to trigger a
deadlock in the kernel, causing a denial of service on the system.
(CVE-2014-8559, Moderate)

* A buffer overflow flaw was found in the way the Linux kernel's virtio-net
subsystem handled certain fraglists when the GRO (Generic Receive Offload)
functionality was enabled in a bridged network configuration. An attacker
on the local network could potentially use this flaw to crash the system,
or, although unlikely, elevate their privileges on the system.
(CVE-2015-5156, Moderate)

The CVE-2015-5156 issue was discovered by Jason Wang of Red Hat.

This update also fixes several bugs and adds one enhancement. Refer to the
linked Knowledgebase article for further information.

All kernel users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues and add this
enhancement. The system must be rebooted for this update to take effect.

Affected Software/OS:
kernel on Red Hat Enterprise Linux Server (v. 7)

Solution:
Please Install the Updated Packages.

CVSS Score:
6.1

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2014-8559
BugTraq ID: 70854
http://www.securityfocus.com/bid/70854
Debian Security Information: DSA-3170 (Google Search)
http://www.debian.org/security/2015/dsa-3170
https://lkml.org/lkml/2014/10/25/171
https://lkml.org/lkml/2014/10/25/179
https://lkml.org/lkml/2014/10/25/180
https://lkml.org/lkml/2014/10/26/101
https://lkml.org/lkml/2014/10/26/116
https://lkml.org/lkml/2014/10/26/128
https://lkml.org/lkml/2014/10/26/129
http://www.openwall.com/lists/oss-security/2014/10/30/7
RedHat Security Advisories: RHSA-2015:1976
http://rhn.redhat.com/errata/RHSA-2015-1976.html
RedHat Security Advisories: RHSA-2015:1978
http://rhn.redhat.com/errata/RHSA-2015-1978.html
http://www.securitytracker.com/id/1034051
http://secunia.com/advisories/62801
SuSE Security Announcement: SUSE-SU-2015:0178 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00035.html
SuSE Security Announcement: SUSE-SU-2015:0481 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
SuSE Security Announcement: SUSE-SU-2015:0529 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00020.html
SuSE Security Announcement: SUSE-SU-2015:0736 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html
SuSE Security Announcement: openSUSE-SU-2015:0566 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
SuSE Security Announcement: openSUSE-SU-2015:0714 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html
http://www.ubuntu.com/usn/USN-2492-1
http://www.ubuntu.com/usn/USN-2493-1
http://www.ubuntu.com/usn/USN-2515-1
http://www.ubuntu.com/usn/USN-2516-1
http://www.ubuntu.com/usn/USN-2517-1
http://www.ubuntu.com/usn/USN-2518-1
Common Vulnerability Exposure (CVE) ID: CVE-2015-5156
BugTraq ID: 76230
http://www.securityfocus.com/bid/76230
Debian Security Information: DSA-3364 (Google Search)
http://www.debian.org/security/2015/dsa-3364
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171454.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169378.html
RedHat Security Advisories: RHSA-2016:0855
http://rhn.redhat.com/errata/RHSA-2016-0855.html
http://www.securitytracker.com/id/1034045
SuSE Security Announcement: SUSE-SU-2015:1727 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00009.html
SuSE Security Announcement: SUSE-SU-2015:2292 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00018.html
http://www.ubuntu.com/usn/USN-2773-1
http://www.ubuntu.com/usn/USN-2774-1
http://www.ubuntu.com/usn/USN-2777-1
CopyrightCopyright (C) 2015 Greenbone Networks GmbH

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