Vulnerability 135704 - CERT Civis.Net

Vulnerability Name:

CCN-135704

Published:

2017-10-22

Updated:

2017-10-22

Summary:

Microsoft Windows could allow a local authenticated attacker to obtain sensitive information, caused by a flaw in the OpenType ATMFD.DLL kernel-mode font driver. By sending a specially-crafted request, an attacker could exploit this vulnerability to obtain full 32-bit kernel addresses.

CVSS v3 Severity:

5.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
5.2 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:F/RL:U/RC:R)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): None Availibility (A): None

CVSS v2 Severity:

4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:N/A:N)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): None Availibility (A): None

Vulnerability Consequences:

Obtain Information

References:

Source: CCN
Type: Project Zero Web site
Windows Kernel ATMFD.DLL NamedEscape 0x2511 pool address derivation from entropy accumulator

Source: XF
Type: UNKNOWN
microsoft-atmfddriver-info-disc(135704)

Source: CCN
Type: Packet Storm Security [11-15-2017]
Microsoft Windows Kernel Pool Address Derivation

Vulnerable Configuration:

Configuration CCN 1:

cpe:/o:microsoft:windows_7:-:*:*:*:*:*:x32:*

OR cpe:/o:microsoft:windows_8:-:-:-:*:-:-:x32:*

OR cpe:/o:microsoft:windows_10:-:*:*:*:*:*:x32:*

Denotes that component is vulnerable

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