// For flags

CVE-2014-1438

kernel: x86: exceptions are not cleared in AMD FXSAVE workaround

Severity Score

4.7
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The restore_fpu_checking function in arch/x86/include/asm/fpu-internal.h in the Linux kernel before 3.12.8 on the AMD K7 and K8 platforms does not clear pending exceptions before proceeding to an EMMS instruction, which allows local users to cause a denial of service (task kill) or possibly gain privileges via a crafted application.

La función restore_fpu_checking en arch/x86/include/asm/fpu-internal.h en el kernel Linux anteriores a 3.12.8 en las plataformas AMD K7 y K8 no limpia las excepciones pendientes antes de proceder a una instrucción EMMS, lo cual permite a usuarios locales causar una denegación de servicio (task kill) o posiblemente obtener privilegios a través de una aplicación manipulada.

*Credits: N/A
CVSS Scores
Attack Vector
Local
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
  • 2014-01-13 CVE Reserved
  • 2014-01-18 CVE Published
  • 2023-11-08 EPSS Updated
  • 2024-08-06 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-264: Permissions, Privileges, and Access Controls
CAPEC
References (22)
URL Date SRC
URL Date SRC
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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<= 3.12.7
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-
Affected
Linux
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Linux Kernel
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3.12
Search vendor "Linux" for product "Linux Kernel" and version "3.12"
-
Affected
Linux
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Linux Kernel
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3.12.1
Search vendor "Linux" for product "Linux Kernel" and version "3.12.1"
-
Affected
Linux
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Linux Kernel
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3.12.2
Search vendor "Linux" for product "Linux Kernel" and version "3.12.2"
-
Affected
Linux
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Linux Kernel
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3.12.3
Search vendor "Linux" for product "Linux Kernel" and version "3.12.3"
-
Affected
Linux
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Linux Kernel
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3.12.4
Search vendor "Linux" for product "Linux Kernel" and version "3.12.4"
-
Affected
Linux
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Linux Kernel
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3.12.5
Search vendor "Linux" for product "Linux Kernel" and version "3.12.5"
-
Affected
Linux
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Linux Kernel
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3.12.6
Search vendor "Linux" for product "Linux Kernel" and version "3.12.6"
-
Affected