// For flags

CVE-2021-30936

webkitgtk: Processing maliciously crafted web content may lead 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 tvOS 15.2, macOS Monterey 12.1, Safari 15.2, iOS 15.2 and iPadOS 15.2, watchOS 8.3. 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 la memoria mejorada. Este problema es corregido en tvOS versión 15.2, macOS Monterey versión 12.1, Safari versión 15.2, iOS versión 15.2 e iPadOS versión 15.2, watchOS versión 8.3. El procesamiento de contenido web creado con fines maliciosos puede conllevar a una ejecución de código arbitrario

A use after free vulnerability was found in webkitgtk. An attacker with network access could pass specially crafted web content files causing an application to halt, crash, or may lead to arbitrary code execution.

*Credits: N/A
CVSS Scores
Attack Vector
Network
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
  • 2021-04-13 CVE Reserved
  • 2021-08-24 CVE Published
  • 2024-05-09 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-416: Use After Free
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"
Safari
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< 15.2
Search vendor "Apple" for product "Safari" and version " < 15.2"
-
Affected
Apple
Search vendor "Apple"
Ipados
Search vendor "Apple" for product "Ipados"
< 15.2
Search vendor "Apple" for product "Ipados" and version " < 15.2"
-
Affected
Apple
Search vendor "Apple"
Iphone Os
Search vendor "Apple" for product "Iphone Os"
< 15.2
Search vendor "Apple" for product "Iphone Os" and version " < 15.2"
-
Affected
Apple
Search vendor "Apple"
Macos
Search vendor "Apple" for product "Macos"
>= 12.0 < 12.1
Search vendor "Apple" for product "Macos" and version " >= 12.0 < 12.1"
-
Affected
Apple
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Tvos
Search vendor "Apple" for product "Tvos"
< 15.2
Search vendor "Apple" for product "Tvos" and version " < 15.2"
-
Affected
Apple
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Watchos
Search vendor "Apple" for product "Watchos"
< 8.3
Search vendor "Apple" for product "Watchos" and version " < 8.3"
-
Affected
Fedoraproject
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Fedora
Search vendor "Fedoraproject" for product "Fedora"
34
Search vendor "Fedoraproject" for product "Fedora" and version "34"
-
Affected
Debian
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Debian Linux
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10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
Affected
Debian
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Debian Linux
Search vendor "Debian" for product "Debian Linux"
11.0
Search vendor "Debian" for product "Debian Linux" and version "11.0"
-
Affected