KB4034664: Windows 7 and Windows Server 2008 R2 August 2017 Cumulative Update

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote Windows host is affected by multiple vulnerabilities.

Description :

The remote Windows host is missing security update 4034664
or 4034679. It is, therefore, affected by multiple
vulnerabilities :

- A denial of service vulnerability exists when Microsoft
Windows improperly handles NetBIOS packets. An attacker
who successfully exploited this vulnerability could
cause a target computer to become completely
unresponsive. A remote unauthenticated attacker could
exploit this vulnerability by sending a series of TCP
packets to a target system, resulting in a permanent
denial of service condition. The update addresses the
vulnerability by correcting how the Windows network
stack handles NetBIOS traffic. (CVE-2017-0174)

- A buffer overflow vulnerability exists in the Microsoft
JET Database Engine that could allow remote code
execution on an affected system. An attacker who
successfully exploited this vulnerability could take
complete control of an affected system. An attacker
could then install programs; view, change, or delete
data; or create new accounts with full user rights.
(CVE-2017-0250)

- A remote code execution vulnerability exists when
Microsoft Windows PDF Library improperly handles objects
in memory. The vulnerability could corrupt memory in a
way that enables an attacker to execute arbitrary code
in the context of the current user. An attacker who
successfully exploited the vulnerability could gain the
same user rights as the current user. (CVE-2017-0293)

- An elevation of privilege vulnerability exists in
Windows when the Win32k component fails to properly
handle objects in memory. An attacker who successfully
exploited this vulnerability could run arbitrary code in
kernel mode. An attacker could then install programs;
view, change, or delete data; or create new accounts
with full user rights. (CVE-2017-8593)

- A remote code execution vulnerability exists when
Windows Search handles objects in memory. An attacker
who successfully exploited this vulnerability could take
control of the affected system. An attacker could then
install programs; view, change, or delete data; or
create new accounts with full user rights.To exploit the
vulnerability, the attacker could send specially crafted
messages to the Windows Search service. An attacker with
access to a target computer could exploit this
vulnerability to elevate privileges and take control of
the computer. Additionally, in an enterprise scenario, a
remote unauthenticated attacker could remotely trigger
the vulnerability through an SMB connection and then
take control of a target computer.The security update
addresses the vulnerability by correcting how Windows
Search handles objects in memory. (CVE-2017-8620)

- An elevation of privilege vulnerability exists when the
Windows Common Log File System (CLFS) driver improperly
handles objects in memory. (CVE-2017-8624)

- This security update resolves a vulnerability in Windows
Error Reporting (WER). The vulnerability could allow
elevation of privilege if successfully exploited by an
attacker. An attacker who successfully exploited this
vulnerability could gain greater access to sensitive
information and system functionality. This update
corrects the way the WER handles and executes files.
(CVE-2017-8633)

- A remote code execution vulnerability exists in the way
that Microsoft browser JavaScript engines render content
when handling objects in memory. The vulnerability could
corrupt memory in such a way that an attacker could
execute arbitrary code in the context of the current
user. (CVE-2017-8636)

- A remote code execution vulnerability exists in the way
JavaScript engines render when handling objects in
memory in Microsoft browsers. The vulnerability could
corrupt memory in such a way that an attacker could
execute arbitrary code in the context of the current
user. An attacker who successfully exploited the
vulnerability could gain the same user rights as the
current user. (CVE-2017-8641)

- A remote code execution vulnerability exists when
Microsoft browsers improperly access objects in memory.
The vulnerability could corrupt memory in such a way
that enables an attacker to execute arbitrary code in
the context of the current user. An attacker who
successfully exploited the vulnerability could gain the
same user rights as the current user. (CVE-2017-8653)

- An information disclosure vulnerability exists when the
win32k component improperly provides kernel information.
An attacker who successfully exploited the vulnerability
could obtain information to further compromise the users
system. (CVE-2017-8666)

- An information disclosure vulnerability exists when the
Volume Manager Extension Driver component improperly
provides kernel information. An attacker who
successfully exploited the vulnerability could obtain
information to further compromise the users system.To
exploit this vulnerability, an attacker would have to
log on to an affected system and run a specially crafted
application.The security update addresses the
vulnerability by correcting how Volume Manager Extension
Driver handles objects in memory. (CVE-2017-8668)

- A remote code execution vulnerability exists when the
Windows font library improperly handles specially
crafted embedded fonts. An attacker who successfully
exploits exploited this vulnerability would gain code
execution on the target system. (CVE-2017-8691)

See also :

http://www.nessus.org/u?bf044da8
http://www.nessus.org/u?b43b168e

Solution :

Apply security update KB4034664 or KB4034679.

Risk factor :

High / CVSS Base Score : 7.2
(CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 5.3
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Ready to Amp Up Your Nessus Experience?

Get Nessus Professional to scan unlimited IPs, run compliance checks & more

Buy Nessus Professional Now