// For flags

CVE-2020-7463

 

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

In FreeBSD 12.1-STABLE before r364644, 11.4-STABLE before r364651, 12.1-RELEASE before p9, 11.4-RELEASE before p3, and 11.3-RELEASE before p13, improper handling in the kernel causes a use-after-free bug by sending large user messages from multiple threads on the same SCTP socket. The use-after-free situation may result in unintended kernel behaviour including a kernel panic.

En FreeBSD versiones 12.1-STABLE anteriores a r364644, 11.4-STABLE anteriores a r364651, 12.1-RELEASE anteriores a p9, 11.4-RELEASE anteriores a p3 y 11.3-RELEASE anteriores a p13, el manejo inapropiado en el kernel causa un bug de uso de la memoria previamente liberada mediante el envío de mensajes de usuario grandes de múltiples subprocesos en el mismo socket SCTP. La situación del uso de la memoria previamente liberada puede resultar en un comportamiento del kernel no deseado, incluyendo un pánico del kernel.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-01-21 CVE Reserved
  • 2021-03-26 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-04 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
Freebsd
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Freebsd
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11.3
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-
Affected
Freebsd
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Freebsd
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11.3
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p1
Affected
Freebsd
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Freebsd
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11.3
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p10
Affected
Freebsd
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Freebsd
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11.3
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p11
Affected
Freebsd
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Freebsd
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11.3
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p12
Affected
Freebsd
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Freebsd
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11.3
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p2
Affected
Freebsd
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Freebsd
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11.3
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p3
Affected
Freebsd
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Freebsd
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11.3
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p4
Affected
Freebsd
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Freebsd
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11.3
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p5
Affected
Freebsd
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Freebsd
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11.3
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p6
Affected
Freebsd
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Freebsd
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11.3
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p7
Affected
Freebsd
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Freebsd
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11.3
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p8
Affected
Freebsd
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Freebsd
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11.3
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p9
Affected
Freebsd
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Freebsd
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11.4
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-
Affected
Freebsd
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Freebsd
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11.4
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p1
Affected
Freebsd
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Freebsd
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11.4
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p2
Affected
Freebsd
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Freebsd
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12.1
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-
Affected
Freebsd
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Freebsd
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12.1
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p1
Affected
Freebsd
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Freebsd
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12.1
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p2
Affected
Freebsd
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Freebsd
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12.1
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p3
Affected
Freebsd
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Freebsd
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12.1
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p4
Affected
Freebsd
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Freebsd
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12.1
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p5
Affected
Freebsd
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Freebsd
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12.1
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p6
Affected
Freebsd
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Freebsd
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12.1
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p7
Affected
Freebsd
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Freebsd
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12.1
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p8
Affected
Freebsd
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Freebsd
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12.2
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-
Affected
Apple
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Icloud
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< 12.3
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windows
Affected
Apple
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Itunes
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< 12.11.3
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windows
Affected
Apple
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Safari
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< 14.1
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-
Affected
Apple
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Ipados
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< 14.5
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-
Affected
Apple
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Iphone Os
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< 14.5
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-
Affected
Apple
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Macos
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>= 11.0 < 11.3
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-
Affected
Apple
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Tvos
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< 14.5
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-
Affected
Apple
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Watchos
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< 7.4
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-
Affected