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Test ID:1.3.6.1.4.1.25623.1.0.871372
Category:Red Hat Local Security Checks
Title:RedHat Update for kernel RHSA-2015:1081-01
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.

* It was found that the Linux kernel's implementation of vectored pipe read
and write functionality did not take into account the I/O vectors that were
already processed when retrying after a failed atomic access operation,
potentially resulting in memory corruption due to an I/O vector array
overrun. A local, unprivileged user could use this flaw to crash the system
or, potentially, escalate their privileges on the system. (CVE-2015-1805,
Important)

* A buffer overflow flaw was found in the way the Linux kernel's Intel
AES-NI instructions optimized version of the RFC4106 GCM mode decryption
functionality handled fragmented packets. A remote attacker could use this
flaw to crash, or potentially escalate their privileges on, a system over a
connection with an active AES-GCM mode IPSec security association.
(CVE-2015-3331, Important)

* An information leak flaw was found in the way the Linux kernel changed
certain segment registers and thread-local storage (TLS) during a context
switch. A local, unprivileged user could use this flaw to leak the user
space TLS base address of an arbitrary process. (CVE-2014-9419, Low)

* It was found that the Linux kernel's ISO file system implementation did
not correctly limit the traversal of Rock Ridge extension Continuation
Entries (CE). An attacker with physical access to the system could use this
flaw to trigger an infinite loop in the kernel, resulting in a denial of
service. (CVE-2014-9420, Low)

* An information leak flaw was found in the way the Linux kernel's Virtual
Dynamic Shared Object (vDSO) implementation performed address
randomization. A local, unprivileged user could use this flaw to leak
kernel memory addresses to user-space. (CVE-2014-9585, Low)

Red Hat would like to thank Carl Henrik Lunde for reporting
CVE-2014-9420. The security impact of the CVE-2015-1805 issue was
discovered by Red Hat.

This update also fixes several bugs and adds various enhancements.
Documentation for these changes is available 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 and add these
enhancements. 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:
9.3

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2014-9419
BugTraq ID: 71794
http://www.securityfocus.com/bid/71794
Debian Security Information: DSA-3128 (Google Search)
http://www.debian.org/security/2015/dsa-3128
http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147973.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147864.html
http://www.mandriva.com/security/advisories?name=MDVSA-2015:058
http://www.openwall.com/lists/oss-security/2014/12/25/1
RedHat Security Advisories: RHSA-2015:1081
http://rhn.redhat.com/errata/RHSA-2015-1081.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-2015:0714 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html
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
http://www.ubuntu.com/usn/USN-2541-1
http://www.ubuntu.com/usn/USN-2542-1
Common Vulnerability Exposure (CVE) ID: CVE-2014-9420
http://www.openwall.com/lists/oss-security/2014/12/25/4
RedHat Security Advisories: RHSA-2015:1137
http://rhn.redhat.com/errata/RHSA-2015-1137.html
RedHat Security Advisories: RHSA-2015:1138
http://rhn.redhat.com/errata/RHSA-2015-1138.html
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-2015:0652 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html
SuSE Security Announcement: SUSE-SU-2015:0812 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
http://www.ubuntu.com/usn/USN-2490-1
http://www.ubuntu.com/usn/USN-2491-1
http://www.ubuntu.com/usn/USN-2492-1
http://www.ubuntu.com/usn/USN-2493-1
Common Vulnerability Exposure (CVE) ID: CVE-2014-9585
BugTraq ID: 71990
http://www.securityfocus.com/bid/71990
Debian Security Information: DSA-3170 (Google Search)
http://www.debian.org/security/2015/dsa-3170
http://lists.fedoraproject.org/pipermail/package-announce/2015-January/148480.html
http://git.kernel.org/?p=linux/kernel/git/luto/linux.git;a=commit;h=bc3b94c31d65e761ddfe150d02932c65971b74e2
http://v0ids3curity.blogspot.in/2014/12/return-to-vdso-using-elf-auxiliary.html
http://www.openwall.com/lists/oss-security/2014/12/09/10
http://www.openwall.com/lists/oss-security/2015/01/09/8
RedHat Security Advisories: RHSA-2015:1778
http://rhn.redhat.com/errata/RHSA-2015-1778.html
RedHat Security Advisories: RHSA-2015:1787
http://rhn.redhat.com/errata/RHSA-2015-1787.html
SuSE Security Announcement: SUSE-SU-2015:0481 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
SuSE Security Announcement: openSUSE-SU-2015:0566 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
http://www.ubuntu.com/usn/USN-2513-1
http://www.ubuntu.com/usn/USN-2514-1
Common Vulnerability Exposure (CVE) ID: CVE-2015-1805
BugTraq ID: 74951
http://www.securityfocus.com/bid/74951
Debian Security Information: DSA-3290 (Google Search)
http://www.debian.org/security/2015/dsa-3290
http://www.openwall.com/lists/oss-security/2015/06/06/2
RedHat Security Advisories: RHSA-2015:1042
http://rhn.redhat.com/errata/RHSA-2015-1042.html
RedHat Security Advisories: RHSA-2015:1082
http://rhn.redhat.com/errata/RHSA-2015-1082.html
RedHat Security Advisories: RHSA-2015:1120
http://rhn.redhat.com/errata/RHSA-2015-1120.html
RedHat Security Advisories: RHSA-2015:1190
http://rhn.redhat.com/errata/RHSA-2015-1190.html
RedHat Security Advisories: RHSA-2015:1199
http://rhn.redhat.com/errata/RHSA-2015-1199.html
RedHat Security Advisories: RHSA-2015:1211
http://rhn.redhat.com/errata/RHSA-2015-1211.html
http://www.securitytracker.com/id/1032454
SuSE Security Announcement: SUSE-SU-2015:1224 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00023.html
SuSE Security Announcement: SUSE-SU-2015:1324 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00049.html
SuSE Security Announcement: SUSE-SU-2015:1478 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html
SuSE Security Announcement: SUSE-SU-2015:1487 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00007.html
SuSE Security Announcement: SUSE-SU-2015:1488 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00008.html
SuSE Security Announcement: SUSE-SU-2015:1489 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00009.html
SuSE Security Announcement: SUSE-SU-2015:1490 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00010.html
SuSE Security Announcement: SUSE-SU-2015:1491 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00011.html
SuSE Security Announcement: SUSE-SU-2015:1592 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html
SuSE Security Announcement: SUSE-SU-2015:1611 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html
http://www.ubuntu.com/usn/USN-2679-1
http://www.ubuntu.com/usn/USN-2680-1
http://www.ubuntu.com/usn/USN-2681-1
http://www.ubuntu.com/usn/USN-2967-1
http://www.ubuntu.com/usn/USN-2967-2
Common Vulnerability Exposure (CVE) ID: CVE-2015-3331
Debian Security Information: DSA-3237 (Google Search)
http://www.debian.org/security/2015/dsa-3237
http://www.openwall.com/lists/oss-security/2015/04/14/16
http://www.securitytracker.com/id/1032416
http://www.ubuntu.com/usn/USN-2631-1
http://www.ubuntu.com/usn/USN-2632-1
CopyrightCopyright (C) 2015 Greenbone Networks GmbH

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