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Test ID:1.3.6.1.4.1.25623.1.0.870646
Category:Red Hat Local Security Checks
Title:RedHat Update for kernel RHSA-2011:1189-01
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:
Security issues:

* Using PCI passthrough without interrupt remapping support allowed KVM
guests to generate MSI interrupts and thus potentially inject traps. A
privileged guest user could use this flaw to crash the host or possibly
escalate their privileges on the host. The fix for this issue can prevent
PCI passthrough working and guests starting. Refer to Red Hat Bugzilla bug
715555 for details. (CVE-2011-1898, Important)

* Flaw in the client-side NLM implementation could allow a local,
unprivileged user to cause a denial of service. (CVE-2011-2491, Important)

* Integer underflow in the Bluetooth implementation could allow a remote
attacker to cause a denial of service or escalate their privileges by
sending a specially-crafted request to a target system via Bluetooth.
(CVE-2011-2497, Important)

* Buffer overflows in the netlink-based wireless configuration interface
implementation could allow a local user, who has the CAP_NET_ADMIN
capability, to cause a denial of service or escalate their privileges on
systems that have an active wireless interface. (CVE-2011-2517, Important)

* Flaw in the way the maximum file offset was handled for ext4 file systems
could allow a local, unprivileged user to cause a denial of service.
(CVE-2011-2695, Important)

* Flaw allowed napi_reuse_skb() to be called on VLAN packets. An attacker
on the local network could use this flaw to send crafted packets to a
target, possibly causing a denial of service. (CVE-2011-1576, Moderate)

* Integer signedness error in next_pidmap() could allow a local,
unprivileged user to cause a denial of service. (CVE-2011-1593, Moderate)

* Race condition in the memory merging support (KSM) could allow a local,
unprivileged user to cause a denial of service. KSM is off by default, but
on systems running VDSM, or on KVM hosts, it is likely turned on by the
ksm/ksmtuned services. (CVE-2011-2183, Moderate)

* Flaw in inet_diag_bc_audit() could allow a local, unprivileged user to
cause a denial of service. (CVE-2011-2213, Moderate)

* Flaw in the way space was allocated in the Global File System 2 (GFS2)
implementation. If the file system was almost full, and a local,
unprivileged user made an fallocate() request, it could result in a denial
of service. Setting quotas to prevent users from using all available disk
space would prevent exploitation of this flaw. (CVE-2011-2689, Moderate)

* Local, unprivileged users could sen ...

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

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:
8.3

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2011-1182
http://www.openwall.com/lists/oss-security/2011/03/23/2
RedHat Security Advisories: RHSA-2011:0927
http://rhn.redhat.com/errata/RHSA-2011-0927.html
Common Vulnerability Exposure (CVE) ID: CVE-2011-1576
BugTraq ID: 48907
http://www.securityfocus.com/bid/48907
http://www.redhat.com/support/errata/RHSA-2011-1090.html
http://www.redhat.com/support/errata/RHSA-2011-1106.html
http://www.securitytracker.com/id?1025853
Common Vulnerability Exposure (CVE) ID: CVE-2011-1593
BugTraq ID: 47497
http://www.securityfocus.com/bid/47497
http://groups.google.com/group/fa.linux.kernel/msg/4a28ecb7f755a88d?dmode=source
http://openwall.com/lists/oss-security/2011/04/19/1
http://openwall.com/lists/oss-security/2011/04/20/1
http://securitytracker.com/id?1025420
http://secunia.com/advisories/44164
http://www.ubuntu.com/usn/USN-1146-1
XForce ISS Database: kernel-nextpidmap-dos(66876)
https://exchange.xforce.ibmcloud.com/vulnerabilities/66876
Common Vulnerability Exposure (CVE) ID: CVE-2011-1776
BugTraq ID: 47796
http://www.securityfocus.com/bid/47796
http://www.pre-cert.de/advisories/PRE-SA-2011-04.txt
http://openwall.com/lists/oss-security/2011/05/10/4
http://securityreason.com/securityalert/8369
Common Vulnerability Exposure (CVE) ID: CVE-2011-1898
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062139.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062112.html
http://theinvisiblethings.blogspot.com/2011/05/following-white-rabbit-software-attacks.html
http://www.invisiblethingslab.com/resources/2011/Software%20Attacks%20on%20Intel%20VT-d.pdf
http://xen.1045712.n5.nabble.com/Xen-security-advisory-CVE-2011-1898-VT-d-PCI-passthrough-MSI-td4390298.html
SuSE Security Announcement: SUSE-SU-2011:0942 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00018.html
SuSE Security Announcement: openSUSE-SU-2011:0941 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00017.html
Common Vulnerability Exposure (CVE) ID: CVE-2011-2183
http://www.openwall.com/lists/oss-security/2011/06/06/1
Common Vulnerability Exposure (CVE) ID: CVE-2011-2213
HPdes Security Advisory: HPSBGN02970
http://marc.info/?l=bugtraq&m=139447903326211&w=2
http://article.gmane.org/gmane.linux.network/197208
http://article.gmane.org/gmane.linux.network/197206
http://article.gmane.org/gmane.linux.network/197386
http://article.gmane.org/gmane.linux.network/198809
http://www.openwall.com/lists/oss-security/2011/06/20/1
http://www.openwall.com/lists/oss-security/2011/06/20/13
http://www.openwall.com/lists/oss-security/2011/06/20/16
Common Vulnerability Exposure (CVE) ID: CVE-2011-2491
http://www.openwall.com/lists/oss-security/2011/06/23/6
RedHat Security Advisories: RHSA-2011:1212
http://rhn.redhat.com/errata/RHSA-2011-1212.html
Common Vulnerability Exposure (CVE) ID: CVE-2011-2492
http://permalink.gmane.org/gmane.linux.bluez.kernel/12909
http://www.openwall.com/lists/oss-security/2011/06/24/2
http://www.openwall.com/lists/oss-security/2011/06/24/3
http://securitytracker.com/id?1025778
Common Vulnerability Exposure (CVE) ID: CVE-2011-2495
http://www.openwall.com/lists/oss-security/2011/06/27/1
Common Vulnerability Exposure (CVE) ID: CVE-2011-2497
BugTraq ID: 48472
http://www.securityfocus.com/bid/48472
http://marc.info/?l=linux-kernel&m=130891911909436&w=2
http://www.openwall.com/lists/oss-security/2011/06/24/9
http://www.openwall.com/lists/oss-security/2011/06/27/3
http://www.osvdb.org/74679
http://securityreason.com/securityalert/8359
Common Vulnerability Exposure (CVE) ID: CVE-2011-2517
http://www.openwall.com/lists/oss-security/2011/07/01/4
Common Vulnerability Exposure (CVE) ID: CVE-2011-2689
BugTraq ID: 48677
http://www.securityfocus.com/bid/48677
http://www.openwall.com/lists/oss-security/2011/07/13/1
RedHat Security Advisories: RHSA-2011:1065
http://rhn.redhat.com/errata/RHSA-2011-1065.html
http://securitytracker.com/id?1025776
http://secunia.com/advisories/45193
XForce ISS Database: linux-kernel-gfs2-dos(68557)
https://exchange.xforce.ibmcloud.com/vulnerabilities/68557
Common Vulnerability Exposure (CVE) ID: CVE-2011-2695
http://www.spinics.net/lists/linux-ext4/msg25697.html
http://www.openwall.com/lists/oss-security/2011/07/15/7
http://www.openwall.com/lists/oss-security/2011/07/15/8
CopyrightCopyright (c) 2012 Greenbone Networks GmbH

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