// For flags

CVE-2021-1762

Apple macOS ModelIO USD Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

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

An out-of-bounds write was addressed with improved input validation. This issue is fixed in iOS 14.4 and iPadOS 14.4, macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave. Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution.

Se abordó una escritura fuera de límites con una comprobación de entrada mejorada. Este problema se corrigió en iOS versión 14.4 e iPadOS versión 14.4, macOS Big Sur versión 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave. El procesamiento de un archivo USD diseñado maliciosamente puede conllevar a una terminación inesperada de la aplicación o la ejecución de código arbitrario

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Apple macOS. Interaction with the ModelIO library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.
The specific flaw exists within the ModelIO framework. Crafted data in a USD file can trigger a write past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process

*Credits: Mickey Jin of Trend Micro Mobile Security Research Team
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
  • 2020-12-08 CVE Reserved
  • 2021-02-02 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-09-25 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-787: Out-of-bounds Write
CAPEC
References (2)
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Apple
Search vendor "Apple"
Ipados
Search vendor "Apple" for product "Ipados"
< 14.4
Search vendor "Apple" for product "Ipados" and version " < 14.4"
-
Affected
Apple
Search vendor "Apple"
Iphone Os
Search vendor "Apple" for product "Iphone Os"
< 14.4
Search vendor "Apple" for product "Iphone Os" and version " < 14.4"
-
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
>= 10.14 <= 10.14.5
Search vendor "Apple" for product "Mac Os X" and version " >= 10.14 <= 10.14.5"
-
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
>= 10.15 <= 10.15.5
Search vendor "Apple" for product "Mac Os X" and version " >= 10.15 <= 10.15.5"
-
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.14.6
Search vendor "Apple" for product "Mac Os X" and version "10.14.6"
-
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.14.6
Search vendor "Apple" for product "Mac Os X" and version "10.14.6"
security_update_2019-001
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.14.6
Search vendor "Apple" for product "Mac Os X" and version "10.14.6"
security_update_2019-002
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.14.6
Search vendor "Apple" for product "Mac Os X" and version "10.14.6"
security_update_2019-004
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.14.6
Search vendor "Apple" for product "Mac Os X" and version "10.14.6"
security_update_2019-005
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.14.6
Search vendor "Apple" for product "Mac Os X" and version "10.14.6"
security_update_2019-006
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.14.6
Search vendor "Apple" for product "Mac Os X" and version "10.14.6"
security_update_2019-007
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.14.6
Search vendor "Apple" for product "Mac Os X" and version "10.14.6"
security_update_2020-001
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.14.6
Search vendor "Apple" for product "Mac Os X" and version "10.14.6"
security_update_2020-002
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.14.6
Search vendor "Apple" for product "Mac Os X" and version "10.14.6"
security_update_2020-003
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.14.6
Search vendor "Apple" for product "Mac Os X" and version "10.14.6"
security_update_2020-004
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.14.6
Search vendor "Apple" for product "Mac Os X" and version "10.14.6"
security_update_2020-005
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.14.6
Search vendor "Apple" for product "Mac Os X" and version "10.14.6"
security_update_2020-006
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.14.6
Search vendor "Apple" for product "Mac Os X" and version "10.14.6"
security_update_2020-007
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.15.6
Search vendor "Apple" for product "Mac Os X" and version "10.15.6"
-
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.15.6
Search vendor "Apple" for product "Mac Os X" and version "10.15.6"
supplemental_update
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.15.7
Search vendor "Apple" for product "Mac Os X" and version "10.15.7"
-
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.15.7
Search vendor "Apple" for product "Mac Os X" and version "10.15.7"
-
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.15.7
Search vendor "Apple" for product "Mac Os X" and version "10.15.7"
security_update_2020
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.15.7
Search vendor "Apple" for product "Mac Os X" and version "10.15.7"
security_update_2020-001
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.15.7
Search vendor "Apple" for product "Mac Os X" and version "10.15.7"
security_update_2020-005
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.15.7
Search vendor "Apple" for product "Mac Os X" and version "10.15.7"
security_update_2020-007
Affected
Apple
Search vendor "Apple"
Mac Os X
Search vendor "Apple" for product "Mac Os X"
10.15.7
Search vendor "Apple" for product "Mac Os X" and version "10.15.7"
supplemental_update
Affected
Apple
Search vendor "Apple"
Macos
Search vendor "Apple" for product "Macos"
>= 11.0 < 11.2
Search vendor "Apple" for product "Macos" and version " >= 11.0 < 11.2"
-
Affected