// For flags

CVE-2018-14641

kernel: a bug in ip_frag_reasm() can cause a crash in ip_do_fragment()

Severity Score

5.9
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A security flaw was found in the ip_frag_reasm() function in net/ipv4/ip_fragment.c in the Linux kernel from 4.19-rc1 to 4.19-rc3 inclusive, which can cause a later system crash in ip_do_fragment(). With certain non-default, but non-rare, configuration of a victim host, an attacker can trigger this crash remotely, thus leading to a remote denial-of-service.

Se ha encontrado un error de seguridad en la función ip_frag_reasm() en net/ipv4/ip_fragment.c en el kernel de Linux, desde la versión 4.19-rc1 a la 4.19-rc3, lo que puede provocar un posterior cierre inesperado en ip_do_fragment(). Con ciertas configuraciones que no son por defecto, pero que no son raras, de un host víctima, un atacante puede desencadenar este cierre remotamente, conduciendo así a una denegación de servicio (DoS) remota.

A security flaw was found in the ip_frag_reasm() function in net/ipv4/ip_fragment.c in the Linux kernel which can cause a later system crash in ip_do_fragment(). With certain non-default, but non-rare, configuration of a victim host, an attacker can trigger this crash remotely, thus leading to a remote denial of service.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2018-07-27 CVE Reserved
  • 2018-09-18 CVE Published
  • 2024-07-03 EPSS Updated
  • 2024-08-05 CVE Updated
  • 2024-08-05 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-20: Improper Input Validation
  • CWE-456: Missing Initialization of a Variable
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
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Linux Kernel
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4.19
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rc1
Affected
Linux
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Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
4.19
Search vendor "Linux" for product "Linux Kernel" and version "4.19"
rc2
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
4.19
Search vendor "Linux" for product "Linux Kernel" and version "4.19"
rc3
Affected