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Test ID:1.3.6.1.4.1.25623.1.0.871812
Category:Red Hat Local Security Checks
Title:RedHat Update for qemu-kvm RHSA-2017:1206-01
Summary:The remote host is missing an update for the 'qemu-kvm'; package(s) announced via the referenced advisory.
Description:Summary:
The remote host is missing an update for the 'qemu-kvm'
package(s) announced via the referenced advisory.

Vulnerability Insight:
Kernel-based Virtual Machine (KVM) is a
full virtualization solution for Linux on a variety of architectures. The qemu-kvm
package provides the user-space component for running virtual machines that use KVM.

Security Fix(es):

* A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA
emulator's VNC display driver support the issue could occur when a VNC
client attempted to update its display after a VGA operation is performed
by a guest. A privileged user/process inside a guest could use this flaw to
crash the QEMU process or, potentially, execute arbitrary code on the host
with privileges of the QEMU process. (CVE-2016-9603)

* An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx
VGA Emulator support. The vulnerability could occur while copying VGA data
via various bitblt functions. A privileged user inside a guest could use
this flaw to crash the QEMU process or, potentially, execute arbitrary code
on the host with privileges of the QEMU process. (CVE-2017-7980)

* An out-of-bounds memory access issue was found in QEMU's VNC display
driver support. The vulnerability could occur while refreshing the VNC
display surface area in the 'vnc_refresh_server_surface'. A user/process
inside a guest could use this flaw to crash the QEMU process, resulting in
a denial of service. (CVE-2017-2633)

* An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA
Emulator support. The vulnerability could occur while copying VGA data
using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A
privileged user inside a guest could use this flaw to crash the QEMU
process, resulting in denial of service. (CVE-2017-7718)

Red Hat would like to thank Jiangxin (PSIRT Huawei Inc.) and Li Qiang
(Qihoo 360 Gear Team) for reporting CVE-2017-7980 and Jiangxin (PSIRT
Huawei Inc.) for reporting CVE-2017-7718.

Affected Software/OS:
qemu-kvm 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:
9.0

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2016-9603
BugTraq ID: 96893
http://www.securityfocus.com/bid/96893
https://security.gentoo.org/glsa/201706-03
https://lists.debian.org/debian-lts-announce/2018/02/msg00005.html
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
RedHat Security Advisories: RHSA-2017:0980
https://access.redhat.com/errata/RHSA-2017:0980
RedHat Security Advisories: RHSA-2017:0981
https://access.redhat.com/errata/RHSA-2017:0981
RedHat Security Advisories: RHSA-2017:0982
https://access.redhat.com/errata/RHSA-2017:0982
RedHat Security Advisories: RHSA-2017:0983
https://access.redhat.com/errata/RHSA-2017:0983
RedHat Security Advisories: RHSA-2017:0984
https://access.redhat.com/errata/RHSA-2017:0984
RedHat Security Advisories: RHSA-2017:0985
https://access.redhat.com/errata/RHSA-2017:0985
RedHat Security Advisories: RHSA-2017:0987
https://access.redhat.com/errata/RHSA-2017:0987
RedHat Security Advisories: RHSA-2017:0988
https://access.redhat.com/errata/RHSA-2017:0988
RedHat Security Advisories: RHSA-2017:1205
https://access.redhat.com/errata/RHSA-2017:1205
RedHat Security Advisories: RHSA-2017:1206
https://access.redhat.com/errata/RHSA-2017:1206
RedHat Security Advisories: RHSA-2017:1441
https://access.redhat.com/errata/RHSA-2017:1441
http://www.securitytracker.com/id/1038023
Common Vulnerability Exposure (CVE) ID: CVE-2017-2633
BugTraq ID: 96417
http://www.securityfocus.com/bid/96417
http://www.openwall.com/lists/oss-security/2017/02/23/1
RedHat Security Advisories: RHSA-2017:1856
https://access.redhat.com/errata/RHSA-2017:1856
Common Vulnerability Exposure (CVE) ID: CVE-2017-7718
BugTraq ID: 97957
http://www.securityfocus.com/bid/97957
http://www.openwall.com/lists/oss-security/2017/04/19/4
RedHat Security Advisories: RHSA-2017:1430
https://access.redhat.com/errata/RHSA-2017:1430
RedHat Security Advisories: RHSA-2017:1431
https://access.redhat.com/errata/RHSA-2017:1431
Common Vulnerability Exposure (CVE) ID: CVE-2017-7980
BugTraq ID: 102129
http://www.securityfocus.com/bid/102129
BugTraq ID: 97955
http://www.securityfocus.com/bid/97955
http://www.openwall.com/lists/oss-security/2017/04/21/1
http://ubuntu.com/usn/usn-3289-1
CopyrightCopyright (C) 2017 Greenbone Networks GmbH

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