CVE-2021-1820
webkitgtk: Memory initialization issue possibly leading to memory disclosure
Severity Score
6.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing maliciously crafted web content may result in the disclosure of process memory.
Se abordó un problema de inicialización de la memoria con un manejo de la memoria mejorada. Este problema se corrigió en macOS Big Sur versión 11.3, iOS versión 14.5 e iPadOS versión 14.5, watchOS versión 7.4, tvOS versión 14.5. El procesamiento de contenido web diseñado maliciosamente puede resultar en una divulgación de la memoria del proceso
*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
- 2020-12-08 CVE Reserved
- 2021-04-28 CVE Published
- 2024-05-24 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
- CWE-665: Improper Initialization
CAPEC
References (6)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://support.apple.com/en-us/HT212317 | 2022-07-12 | |
| https://support.apple.com/en-us/HT212323 | 2022-07-12 | |
| https://support.apple.com/en-us/HT212324 | 2022-07-12 | |
| https://support.apple.com/en-us/HT212325 | 2022-07-12 | |
| https://access.redhat.com/security/cve/CVE-2021-1820 | 2021-05-18 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1986856 | 2021-05-18 |
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" | < 14.5 Search vendor "Apple" for product "Ipados" and version " < 14.5" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Iphone Os Search vendor "Apple" for product "Iphone Os" | < 14.5 Search vendor "Apple" for product "Iphone Os" and version " < 14.5" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Macos Search vendor "Apple" for product "Macos" | >= 11.0 < 11.3 Search vendor "Apple" for product "Macos" and version " >= 11.0 < 11.3" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Tvos Search vendor "Apple" for product "Tvos" | < 14.5 Search vendor "Apple" for product "Tvos" and version " < 14.5" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Watchos Search vendor "Apple" for product "Watchos" | < 7.4 Search vendor "Apple" for product "Watchos" and version " < 7.4" | - |
Affected
| ||||||