CVE-2012-2101

Ubuntu Security Notice USN-1438-1

Severity Score

6.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Openstack Compute (Nova) Folsom, 2012.1, and 2011.3 does not limit the number of security group rules, which allows remote authenticated users with certain permissions to cause a denial of service (CPU and hard drive consumption) via a network request that triggers a large number of iptables rules.

Openstack Compute (Nova) Folsom v2012.1 y v2011.3 no limitan el número de reglas de seguridad del grupo, lo que permite causar una denegación de servicio (excesivo consumo de CPU y de disco duro) a usuarios remotos autenticados con determinados permisos a través de una solicitud de red que provoca una gran número de reglas de iptables.

Dan Prince discovered that Nova did not enforce quotas for security groups and rules added to security groups. An authenticated user could exploit this to cause a denial of service.

*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

Medium

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2012-04-04 CVE Reserved
2012-05-03 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

References (12)

URL	Tag	Source
http://www.osvdb.org/81641	Vdb Entry
https://bugs.launchpad.net/nova/+bug/969545	X_refsource_confirm
https://exchange.xforce.ibmcloud.com/vulnerabilities/75243	Vdb Entry
https://github.com/openstack/nova/commit/1f644d210557b1254f7c7b39424b09a45329ade7	X_refsource_confirm
https://github.com/openstack/nova/commit/8c8735a73afb16d5856f0aa6088e9ae406c52beb	X_refsource_confirm
https://github.com/openstack/nova/commit/a67db4586f70ed881d65e80035b2a25be195ce64	X_refsource_confirm
https://lists.launchpad.net/openstack/msg10268.html	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2012-May/079434.html	2017-08-29
http://lists.fedoraproject.org/pipermail/package-announce/2012-May/079551.html	2017-08-29
http://secunia.com/advisories/49034	2017-08-29
http://secunia.com/advisories/49048	2017-08-29
http://ubuntu.com/usn/usn-1438-1	2017-08-29

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Openstack Search vendor "Openstack"		Nova Search vendor "Openstack" for product "Nova"				2011.3 Search vendor "Openstack" for product "Nova" and version "2011.3"		-		Affected
Openstack Search vendor "Openstack"		Nova Search vendor "Openstack" for product "Nova"				2012.1 Search vendor "Openstack" for product "Nova" and version "2012.1"		-		Affected
Openstack Search vendor "Openstack"		Nova Search vendor "Openstack" for product "Nova"				folsom Search vendor "Openstack" for product "Nova" and version "folsom"		-		Affected