// For flags

CVE-2020-27944

Apple CoreText libType1Scaler.dylib Out-Of-Bounds Write / Integer Overflow

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A memory corruption issue existed in the processing of font files. This issue was addressed with improved input validation. This issue is fixed in watchOS 7.2, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, iOS 14.3 and iPadOS 14.3, tvOS 14.3. Processing a maliciously crafted font file may lead to arbitrary code execution.

Se presentó un problema de corrupción de memoria en un procesamiento de archivos de fuentes. Este problema es abordado con una comprobación de la entrada mejorada. Este problema es corregido en watchOS versión 7.2, macOS Big Sur versión 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, iOS versión 14.3 y iPadOS versión 14.3, tvOS versión 14.3. El procesamiento de un archivo fuente diseñado maliciosamente puede conllevar a una ejecución de código arbitraria.

Apple CoreText libType1Scaler.dylib suffers from a heap out-of-bounds-write due to an integer overflow vulnerability in STOREWV othersubr.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-10-27 CVE Reserved
  • 2020-12-16 CVE Published
  • 2024-03-08 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Apple
Search vendor "Apple"
 Ipad Os
Search vendor "Apple" for product "Ipad Os"
 < 14.3
Search vendor "Apple" for product "Ipad Os" and version " < 14.3"
-
Affected
Apple
Search vendor "Apple"
 Iphone Os
Search vendor "Apple" for product "Iphone Os"
 < 14.3
Search vendor "Apple" for product "Iphone Os" and version " < 14.3"
-
Affected
Apple
Search vendor "Apple"
 Macos
Search vendor "Apple" for product "Macos"
 < 11.1.0
Search vendor "Apple" for product "Macos" and version " < 11.1.0"
-
Affected
Apple
Search vendor "Apple"
 Tvos
Search vendor "Apple" for product "Tvos"
 < 14.3
Search vendor "Apple" for product "Tvos" and version " < 14.3"
-
Affected
Apple
Search vendor "Apple"
 Watchos
Search vendor "Apple" for product "Watchos"
 < 7.2
Search vendor "Apple" for product "Watchos" and version " < 7.2"
-
Affected