Attacker Value
Low
(1 user assessed)
Exploitability
Low
(1 user assessed)
User Interaction
None
Privileges Required
Low
Attack Vector
Local
0

CVE-2020-0791

Disclosure Date: March 12, 2020
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Description

An elevation of privilege vulnerability exists when the Windows Graphics Component improperly handles objects in memory, aka ‘Windows Graphics Component Elevation of Privilege Vulnerability’. This CVE ID is unique from CVE-2020-0898.

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2
Ratings
Technical Analysis

An out of bounds dereference exists within the kernel-mode function win32kfull!vStrWrite01 that can be triggered from user-mode by calling gdi32!StretchBlt with a specially sized canvas and a specific raster operation (SRCERASE).

StretchBlt(hdc, 0x0, 0x2, 0x100, 0x1, hdc, 0x0, 0x0, 0x400, 0x8000, SRCERASE)

The vulnerability could be leveraged as an information leak.

CVSS V3 Severity and Metrics
Base Score:
7.8 High
Impact Score:
5.9
Exploitability Score:
1.8
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Vendors

  • microsoft

Products

  • windows 10 -,
  • windows 10 1607,
  • windows 10 1709,
  • windows 10 1803,
  • windows 10 1809,
  • windows 10 1903,
  • windows 10 1909,
  • windows 7 -,
  • windows 8.1 -,
  • windows rt 8.1 -,
  • windows server 2008 -,
  • windows server 2008 r2,
  • windows server 2012 -,
  • windows server 2012 r2,
  • windows server 2016 -,
  • windows server 2016 1803,
  • windows server 2016 1903,
  • windows server 2016 1909,
  • windows server 2019 -

Additional Info

Technical Analysis