// For flags

CVE-2015-5225

Qemu: ui: vnc: heap memory corruption in vnc_refresh_server_surface

Severity Score

7.2
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Buffer overflow in the vnc_refresh_server_surface function in the VNC display driver in QEMU before 2.4.0.1 allows guest users to cause a denial of service (heap memory corruption and process crash) or possibly execute arbitrary code on the host via unspecified vectors, related to refreshing the server display surface.

Desbordamiento de buffer en la función vnc_refresh_server_surface en el controlador de pantalla VNC en QEMU en versiones anteriores a 2.4.0.1 permite a usuarios invitados provocar una denegación de servicio (corrupción de memoria dinámica y caída de proceso) o posiblemente ejecutar código arbitrario en el host a través de vectores no especificados, relacionado con la actualización de la superficie mostrada en el servidor.

A heap-based buffer overflow issue was found in the QEMU emulator's VNC display driver. It could occur while refreshing the VNC server's display surface using the vnc_refresh_server_surface() routine. A privileged guest user could use this flaw to corrupt the heap memory and crash the QEMU process instance, or to potentially use it to execute arbitrary code on the host.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
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
  • 2015-07-01 CVE Reserved
  • 2015-08-27 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-06 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-122: Heap-based Buffer Overflow
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Redhat
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Openstack
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5.0
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-
Affected
Redhat
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Openstack
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6.0
Search vendor "Redhat" for product "Openstack" and version "6.0"
-
Affected
Redhat
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Openstack
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7.0
Search vendor "Redhat" for product "Openstack" and version "7.0"
-
Affected
Fedoraproject
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Fedora
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21
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-
Affected
Fedoraproject
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Fedora
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22
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-
Affected
Fedoraproject
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Fedora
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23
Search vendor "Fedoraproject" for product "Fedora" and version "23"
-
Affected
Qemu
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Qemu
Search vendor "Qemu" for product "Qemu"
<= 2.4.0
Search vendor "Qemu" for product "Qemu" and version " <= 2.4.0"
-
Affected