CVE-2021-30733
Apple Security Advisory 2021-07-21-3
Severity Score
5.5
*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 read was addressed with improved input validation. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave, macOS Big Sur 11.4, watchOS 7.5. Processing a maliciously crafted font may result in the disclosure of process memory.
Se abordó una lectura fuera de límites con una comprobación de entrada mejorada. Este problema se corrigió en tvOS versión 14.6, iOS versión 14.6 e iPadOS versión 14.6, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave, macOS Big Sur versión 11.4, watchOS versión 7.5. El procesamiento de una fuente maliciosamente diseñada puede resultar en una divulgación de la memoria del proceso
Security Update 2021-004 Catalina addresses buffer overflow, code execution, double free, information leakage, integer overflow, out of bounds read, and out of bounds write vulnerabilities.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-04-13 CVE Reserved
- 2021-07-23 CVE Published
- 2024-08-03 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-125: Out-of-bounds Read
CAPEC
References (6)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://support.apple.com/en-us/HT212528 | 2023-01-09 | |
| https://support.apple.com/en-us/HT212529 | 2023-01-09 | |
| https://support.apple.com/en-us/HT212532 | 2023-01-09 | |
| https://support.apple.com/en-us/HT212533 | 2023-01-09 | |
| https://support.apple.com/en-us/HT212600 | 2023-01-09 | |
| https://support.apple.com/en-us/HT212603 | 2023-01-09 |
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" | < 14.6 Search vendor "Apple" for product "Ipados" and version " < 14.6" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Iphone Os Search vendor "Apple" for product "Iphone Os" | < 14.6 Search vendor "Apple" for product "Iphone Os" and version " < 14.6" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | >= 10.14.0 <= 10.14.5 Search vendor "Apple" for product "Mac Os X" and version " >= 10.14.0 <= 10.14.5" | - |
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" | 10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6" | security_update_2021-001 |
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_2021-002 |
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_2021-003 |
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_2021-004 |
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" | supplemental_update |
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" | supplemental_update_2 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15 Search vendor "Apple" for product "Mac Os X" and version "10.15" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.1 Search vendor "Apple" for product "Mac Os X" and version "10.15.1" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.2 Search vendor "Apple" for product "Mac Os X" and version "10.15.2" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.3 Search vendor "Apple" for product "Mac Os X" and version "10.15.3" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.4 Search vendor "Apple" for product "Mac Os X" and version "10.15.4" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.5 Search vendor "Apple" for product "Mac Os X" and version "10.15.5" | - |
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" | - |
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" | security_update_2021-001 |
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_2021-002 |
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_2021-003 |
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" | >= 11.0.1 < 11.4 Search vendor "Apple" for product "Macos" and version " >= 11.0.1 < 11.4" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Tvos Search vendor "Apple" for product "Tvos" | < 14.6 Search vendor "Apple" for product "Tvos" and version " < 14.6" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Watchos Search vendor "Apple" for product "Watchos" | < 7.5 Search vendor "Apple" for product "Watchos" and version " < 7.5" | - |
Affected
| ||||||