// For flags

CVE-2013-6436

Ubuntu Security Notice USN-2093-1

Severity Score

5.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The lxcDomainGetMemoryParameters method in lxc/lxc_driver.c in libvirt 1.0.5 through 1.2.0 does not properly check the status of LXC guests when reading memory tunables, which allows local users to cause a denial of service (NULL pointer dereference and libvirtd crash) via a guest in the shutdown status, as demonstrated by the "virsh memtune" command.

El método lxcDomainGetMemoryParameters en lxc/lxc_driver.c en libvirt 1.0.5 a 1.2.0 no comprueba correctamente el estado de invitados LXC cuando lee configuraciones de memoria, lo cual permite a usuarios locales causar denegación de servicio (referencia a puntero a NULL y caída de libvirtd) a través de un invitado en el estado de apagado, como se demuestra con el comando "virsh memtune".

Martin Kletzander discovered that libvirt incorrectly handled reading memory tunables from LXC guests. A local user could possibly use this flaw to cause libvirtd to crash, resulting in a denial of service. This issue only affected Ubuntu 13.10. Dario Faggioli discovered that libvirt incorrectly handled the libxl driver. A local user could possibly use this flaw to cause libvirtd to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 13.10. Various other issues were also addressed.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2013-11-04 CVE Reserved
  • 2014-01-07 CVE Published
  • 2024-08-06 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-264: Permissions, Privileges, and Access Controls
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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Libvirt
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1.0.5
Search vendor "Redhat" for product "Libvirt" and version "1.0.5"
-
Affected
Redhat
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Libvirt
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1.0.5.1
Search vendor "Redhat" for product "Libvirt" and version "1.0.5.1"
-
Affected
Redhat
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Libvirt
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1.0.5.2
Search vendor "Redhat" for product "Libvirt" and version "1.0.5.2"
-
Affected
Redhat
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Libvirt
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1.0.5.3
Search vendor "Redhat" for product "Libvirt" and version "1.0.5.3"
-
Affected
Redhat
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Libvirt
Search vendor "Redhat" for product "Libvirt"
1.0.5.4
Search vendor "Redhat" for product "Libvirt" and version "1.0.5.4"
-
Affected
Redhat
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Libvirt
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1.0.5.5
Search vendor "Redhat" for product "Libvirt" and version "1.0.5.5"
-
Affected
Redhat
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Libvirt
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1.0.5.6
Search vendor "Redhat" for product "Libvirt" and version "1.0.5.6"
-
Affected
Redhat
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Libvirt
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1.0.6
Search vendor "Redhat" for product "Libvirt" and version "1.0.6"
-
Affected
Redhat
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Libvirt
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1.1.0
Search vendor "Redhat" for product "Libvirt" and version "1.1.0"
-
Affected
Redhat
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Libvirt
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1.1.1
Search vendor "Redhat" for product "Libvirt" and version "1.1.1"
-
Affected
Redhat
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Libvirt
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1.1.2
Search vendor "Redhat" for product "Libvirt" and version "1.1.2"
-
Affected
Redhat
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Libvirt
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1.1.3
Search vendor "Redhat" for product "Libvirt" and version "1.1.3"
-
Affected
Redhat
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Libvirt
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1.1.4
Search vendor "Redhat" for product "Libvirt" and version "1.1.4"
-
Affected
Redhat
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Libvirt
Search vendor "Redhat" for product "Libvirt"
1.2.0
Search vendor "Redhat" for product "Libvirt" and version "1.2.0"
-
Affected