// For flags

CVE-2019-5597

 

Severity Score

9.1
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In FreeBSD 11.3-PRERELEASE and 12.0-STABLE before r347591, 11.2-RELEASE before 11.2-RELEASE-p10, and 12.0-RELEASE before 12.0-RELEASE-p4, a bug in the pf IPv6 fragment reassembly logic incorrectly uses the last extension header offset from the last received packet instead of the first packet allowing maliciously crafted IPv6 packets to cause a crash or potentially bypass the packet filter.

En FreeBSD 11.3-PRERELEASE y 12.0-STABLE anterior a r347591, 11.2-RELEASE anterior a 11.2-RELEASE-p10, y 12.0-RELEASE antes de 12.0-RELEASE-p4, un error en la lógica de reensamblado del fragmento pf IPv6 usa incorrectamente la última extensión del encabezado desde el desvío el último paquete recibido en vez del primer paquete permitiendo que los paquetes IPv6 diseñados con fines maliciosos originen un bloqueo o omitan potencialmente el Packet Filter.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-01-07 CVE Reserved
  • 2019-05-15 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-08-04 First Exploit
  • 2024-10-05 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-20: Improper Input Validation
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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11.2
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-
Affected
Freebsd
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Freebsd
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11.2
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p2
Affected
Freebsd
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Freebsd
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11.2
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p3
Affected
Freebsd
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Freebsd
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11.2
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p4
Affected
Freebsd
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Freebsd
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11.2
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p5
Affected
Freebsd
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Freebsd
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11.2
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p6
Affected
Freebsd
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Freebsd
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11.2
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p7
Affected
Freebsd
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Freebsd
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11.2
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p9
Affected
Freebsd
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Freebsd
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12.0
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-
Affected
Freebsd
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Freebsd
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12.0
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p1
Affected
Freebsd
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Freebsd
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12.0
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p3
Affected