CVE-2021-30795
webkitgtk: Use-after-free leading to arbitrary code execution
Severity Score
8.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.7, Safari 14.1.2, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7. Processing maliciously crafted web content may lead to arbitrary code execution.
Se abordó un problema de uso de memoria previamente liberada con una administración de memoria mejorada. Este problema se corrigió en iOS versión 14.7, Safari versión 14.1.2, macOS Big Sur versión 11.5, watchOS versión 7.6, tvOS versión 14.7. El procesamiento de contenido web diseñado maliciosamente puede conllevar a una ejecución de código arbitrario
WebKit suffers from a heap use-after-free vulnerability in WebCore::FrameLoader::PolicyChecker::checkNavigationPolicy.
*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
- 2024-05-24 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
- CWE-416: Use After Free
CAPEC
References (7)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://support.apple.com/en-us/HT212601 | 2021-09-16 | |
| https://support.apple.com/en-us/HT212602 | 2021-09-16 | |
| https://support.apple.com/en-us/HT212604 | 2021-09-16 | |
| https://support.apple.com/en-us/HT212605 | 2021-09-16 | |
| https://support.apple.com/en-us/HT212606 | 2021-09-16 | |
| https://access.redhat.com/security/cve/CVE-2021-30795 | 2021-11-09 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1986900 | 2021-11-09 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Apple Search vendor "Apple" | Safari Search vendor "Apple" for product "Safari" | < 14.1.2 Search vendor "Apple" for product "Safari" and version " < 14.1.2" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Iphone Os Search vendor "Apple" for product "Iphone Os" | < 14.7 Search vendor "Apple" for product "Iphone Os" and version " < 14.7" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Macos Search vendor "Apple" for product "Macos" | >= 11.0 < 11.5 Search vendor "Apple" for product "Macos" and version " >= 11.0 < 11.5" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Tvos Search vendor "Apple" for product "Tvos" | < 14.7 Search vendor "Apple" for product "Tvos" and version " < 14.7" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Watchos Search vendor "Apple" for product "Watchos" | < 7.6 Search vendor "Apple" for product "Watchos" and version " < 7.6" | - |
Affected
| ||||||