// For flags

CVE-2019-1093

Microsoft Windows DirectWrite Integer Underflow Information Disclosure Vulnerability

Severity Score

5.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An information disclosure vulnerability exists when DirectWrite improperly discloses the contents of its memory, aka 'DirectWrite Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2019-1097.

Existe una vulnerabilidad de divulgación de información cuando DirectWrite divulga inapropiadamente el contenido de la memoria, también se conoce como 'DirectWrite Information Disclosure Vulnerability'. El ID de este CVE es diferente de CVE-2019-1097.

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Microsoft Windows. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of font files in the DirectWrite library. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before reading from memory. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process.

*Credits: kdot
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2018-11-26 CVE Reserved
  • 2019-07-10 CVE Published
  • 2024-03-11 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Microsoft
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Windows 10
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--
Affected
Microsoft
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Windows 10
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1607
Search vendor "Microsoft" for product "Windows 10" and version "1607"
-
Affected
Microsoft
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Windows 10
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1703
Search vendor "Microsoft" for product "Windows 10" and version "1703"
-
Affected
Microsoft
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Windows 10
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1709
Search vendor "Microsoft" for product "Windows 10" and version "1709"
-
Affected
Microsoft
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Windows 10
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1803
Search vendor "Microsoft" for product "Windows 10" and version "1803"
-
Affected
Microsoft
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Windows 10
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1809
Search vendor "Microsoft" for product "Windows 10" and version "1809"
-
Affected
Microsoft
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Windows 10
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1903
Search vendor "Microsoft" for product "Windows 10" and version "1903"
-
Affected
Microsoft
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Windows 7
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-sp1
Affected
Microsoft
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Windows 8.1
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--
Affected
Microsoft
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Windows Rt 8.1
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--
Affected
Microsoft
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Windows Server 2008
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-sp2
Affected
Microsoft
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Windows Server 2008
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r2
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sp1, itanium
Affected
Microsoft
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Windows Server 2008
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r2
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sp1, x64
Affected
Microsoft
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Windows Server 2012
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--
Affected
Microsoft
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Windows Server 2012
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r2
Search vendor "Microsoft" for product "Windows Server 2012" and version "r2"
-
Affected
Microsoft
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Windows Server 2016
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--
Affected
Microsoft
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Windows Server 2016
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1803
Search vendor "Microsoft" for product "Windows Server 2016" and version "1803"
-
Affected
Microsoft
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Windows Server 2016
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1903
Search vendor "Microsoft" for product "Windows Server 2016" and version "1903"
-
Affected
Microsoft
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Windows Server 2019
Search vendor "Microsoft" for product "Windows Server 2019"
--
Affected