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Test ID:1.3.6.1.4.1.25623.1.0.871380
Category:Red Hat Local Security Checks
Title:RedHat Update for kernel RHSA-2015:1137-01
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 race condition flaw was found in the way the Linux kernel keys
management subsystem performed key garbage collection. A local attacker
could attempt accessing a key while it was being garbage collected, which
would cause the system to crash. (CVE-2014-9529, Moderate)

* A flaw was found in the way the Linux kernel's 32-bit emulation
implementation handled forking or closing of a task with an 'int80' entry.
A local user could potentially use this flaw to escalate their privileges
on the system. (CVE-2015-2830, 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 ISO9660
file system implementation accessed data on an ISO9660 image with RockRidge
Extension Reference (ER) records. An attacker with physical access to the
system could use this flaw to disclose up to 255 bytes of kernel memory.
(CVE-2014-9584, Low)

* A flaw was found in the way the nft_flush_table() function of the Linux
kernel's netfilter tables implementation flushed rules that were
referencing deleted chains. A local user who has the CAP_NET_ADMIN
capability could use this flaw to crash the system. (CVE-2015-1573, Low)

* An integer overflow flaw was found in the way the Linux kernel randomized
the stack for processes on certain 64-bit architecture systems, such as
x86-64, causing the stack entropy to be reduced by four. (CVE-2015-1593,
Low)

Red Hat would like to thank Carl Henrik Lunde for reporting CVE-2014-9420
and CVE-2014-9584. The security impact of the CVE-2015-1805 issue was
discovered by Red Hat.

This update also fixes several bugs.

Description truncated, please see the referenced URL(s) for more information.

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

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-2014-9420
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/2014/12/25/4
RedHat Security Advisories: RHSA-2015:1081
http://rhn.redhat.com/errata/RHSA-2015-1081.html
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-2015:0736 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html
SuSE Security Announcement: SUSE-SU-2015:0812 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.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-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
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-2014-9529
BugTraq ID: 71880
http://www.securityfocus.com/bid/71880
Debian Security Information: DSA-3128 (Google Search)
http://www.debian.org/security/2015/dsa-3128
http://www.openwall.com/lists/oss-security/2015/01/06/10
RedHat Security Advisories: RHSA-2015:0864
http://rhn.redhat.com/errata/RHSA-2015-0864.html
http://www.securitytracker.com/id/1036763
http://www.ubuntu.com/usn/USN-2511-1
http://www.ubuntu.com/usn/USN-2512-1
http://www.ubuntu.com/usn/USN-2513-1
http://www.ubuntu.com/usn/USN-2514-1
XForce ISS Database: linux-kernel-cve20149529-dos(99641)
https://exchange.xforce.ibmcloud.com/vulnerabilities/99641
Common Vulnerability Exposure (CVE) ID: CVE-2014-9584
BugTraq ID: 71883
http://www.securityfocus.com/bid/71883
http://www.openwall.com/lists/oss-security/2015/01/09/4
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: openSUSE-SU-2015:0566 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
Common Vulnerability Exposure (CVE) ID: CVE-2015-1573
BugTraq ID: 72552
http://www.securityfocus.com/bid/72552
http://www.openwall.com/lists/oss-security/2015/02/10/13
Common Vulnerability Exposure (CVE) ID: CVE-2015-1593
BugTraq ID: 72607
http://www.securityfocus.com/bid/72607
Debian Security Information: DSA-3170 (Google Search)
http://www.debian.org/security/2015/dsa-3170
http://hmarco.org/bugs/linux-ASLR-integer-overflow.html
https://lkml.org/lkml/2015/1/7/811
http://www.openwall.com/lists/oss-security/2015/02/13/13
RedHat Security Advisories: RHSA-2015:1221
http://rhn.redhat.com/errata/RHSA-2015-1221.html
RedHat Security Advisories: RHSA-2019:3517
https://access.redhat.com/errata/RHSA-2019:3517
http://www.ubuntu.com/usn/USN-2560-1
http://www.ubuntu.com/usn/USN-2561-1
http://www.ubuntu.com/usn/USN-2562-1
http://www.ubuntu.com/usn/USN-2563-1
http://www.ubuntu.com/usn/USN-2564-1
http://www.ubuntu.com/usn/USN-2565-1
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-2015-2830
Debian Security Information: DSA-3237 (Google Search)
http://www.debian.org/security/2015/dsa-3237
http://www.openwall.com/lists/oss-security/2015/04/02/1
http://www.securitytracker.com/id/1032413
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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