CVE-2015-5247

Ubuntu Security Notice USN-2867-1

Severity Score

6.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The virStorageVolCreateXML API in libvirt 1.2.14 through 1.2.19 allows remote authenticated users with a read-write connection to cause a denial of service (libvirtd crash) by triggering a failed unlink after creating a volume on a root_squash NFS pool.

La API virStorageVolCreateXML en libvirt 1.2.14 hasta la versión 1.2.19 permite a usuarios remotos autenticados con una conexión de lectura-escritura causar una denegación de servicio (caída de libvirtd) desencadenando una desvinculación fallida después de crear un volumen en un pool NFS root_squash.

It was discovered that libvirt incorrectly handled the firewall rules on bridge networks when the daemon was restarted. This could result in an unintended firewall configuration. This issue only applied to Ubuntu 12.04 LTS. Peter Krempa discovered that libvirt incorrectly handled locking when certain ACL checks failed. A local attacker could use this issue to cause libvirt to stop responding, resulting in a denial of service. This issue only applied to Ubuntu 14.04 LTS. Various other issues were also addressed.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-07-01 CVE Reserved
2016-01-12 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-284: Improper Access Control

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://security.libvirt.org/2015/0003.html	2016-04-18
http://www.ubuntu.com/usn/USN-2867-1	2016-04-18

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Redhat Search vendor "Redhat"		Libvirt Search vendor "Redhat" for product "Libvirt"				1.2.14 Search vendor "Redhat" for product "Libvirt" and version "1.2.14"		-		Affected
Redhat Search vendor "Redhat"		Libvirt Search vendor "Redhat" for product "Libvirt"				1.2.15 Search vendor "Redhat" for product "Libvirt" and version "1.2.15"		-		Affected
Redhat Search vendor "Redhat"		Libvirt Search vendor "Redhat" for product "Libvirt"				1.2.16 Search vendor "Redhat" for product "Libvirt" and version "1.2.16"		-		Affected
Redhat Search vendor "Redhat"		Libvirt Search vendor "Redhat" for product "Libvirt"				1.2.17 Search vendor "Redhat" for product "Libvirt" and version "1.2.17"		-		Affected
Redhat Search vendor "Redhat"		Libvirt Search vendor "Redhat" for product "Libvirt"				1.2.18 Search vendor "Redhat" for product "Libvirt" and version "1.2.18"		-		Affected
Redhat Search vendor "Redhat"		Libvirt Search vendor "Redhat" for product "Libvirt"				1.2.19 Search vendor "Redhat" for product "Libvirt" and version "1.2.19"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				15.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "15.04"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				15.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "15.10"		-		Affected