// For flags

CVE-2021-30846

webkitgtk: Memory corruption issue leading to arbitrary code execution

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

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, Safari 15, tvOS 15, iOS 15 and iPadOS 15, watchOS 8. Processing maliciously crafted web content may lead to arbitrary code execution.

Se abordó un problema de corrupción de memoria con un manejo de memoria mejorado. Este problema es corregido en iOS versión 14.8 y iPadOS versión 14.8, Safari versión 15, tvOS versión 15, iOS versión 15 y iPadOS versión 15, watchOS versión 8. El procesamiento de contenido web maliciosamente diseñado puede conllevar la ejecución de código arbitrario

WebKit suffers from a heap use-after-free vulnerability in PointerCaptureController::processPendingPointerCapture.

*Credits: N/A
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
  • 2021-04-13 CVE Reserved
  • 2021-09-22 CVE Published
  • 2024-07-04 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Apple
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Safari
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< 15.0
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-
Affected
Apple
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Ipados
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< 14.8
Search vendor "Apple" for product "Ipados" and version " < 14.8"
-
Affected
Apple
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Iphone Os
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< 14.8
Search vendor "Apple" for product "Iphone Os" and version " < 14.8"
-
Affected
Apple
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Macos
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< 12.0.1
Search vendor "Apple" for product "Macos" and version " < 12.0.1"
-
Affected
Apple
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Tvos
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< 15.0
Search vendor "Apple" for product "Tvos" and version " < 15.0"
-
Affected
Apple
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Watchos
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< 8.0
Search vendor "Apple" for product "Watchos" and version " < 8.0"
-
Affected
Debian
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Debian Linux
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10.0
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-
Affected
Debian
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Debian Linux
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11.0
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-
Affected
Fedoraproject
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Fedora
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33
Search vendor "Fedoraproject" for product "Fedora" and version "33"
-
Affected
Fedoraproject
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Fedora
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34
Search vendor "Fedoraproject" for product "Fedora" and version "34"
-
Affected