// For flags

CVE-2013-1796

kernel: kvm: buffer overflow in handling of MSR_KVM_SYSTEM_TIME

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The kvm_set_msr_common function in arch/x86/kvm/x86.c in the Linux kernel through 3.8.4 does not ensure a required time_page alignment during an MSR_KVM_SYSTEM_TIME operation, which allows guest OS users to cause a denial of service (buffer overflow and host OS memory corruption) or possibly have unspecified other impact via a crafted application.

La función kvm_set_msr_common en arch/x86/kvm/x86.c en el kernel de Linux hasta v3.8.4 no asegura una alineación time_page requerido durante una operación MSR_KVM_SYSTEM_TIME, que permite a usuarios de sistemas operativos invitados para causar una denegación de servicios (desbordamiento de memoria y corrupción de memoria en el sistema operativo anfitrión) o posiblemente tener un impacto no especificado a través de una aplicación diseñada.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Adjacent
Attack Complexity
High
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
Attack Vector
Adjacent
Attack Complexity
High
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2013-02-19 CVE Reserved
  • 2013-03-22 CVE Published
  • 2024-08-06 CVE Updated
  • 2024-10-20 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
<= 3.8.4
Search vendor "Linux" for product "Linux Kernel" and version " <= 3.8.4"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
3.8.0
Search vendor "Linux" for product "Linux Kernel" and version "3.8.0"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
3.8.1
Search vendor "Linux" for product "Linux Kernel" and version "3.8.1"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
3.8.2
Search vendor "Linux" for product "Linux Kernel" and version "3.8.2"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
3.8.3
Search vendor "Linux" for product "Linux Kernel" and version "3.8.3"
-
Affected