CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.5	$0-$5k	0.00

A vulnerability was found in Linux Foundation Xen 4.1.1 (Virtualization Software). It has been declared as problematic. Affected by this vulnerability is an unknown code block. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. The summary by CVE is:

Xen 4.1.1 and earlier allows local guest OS kernels with control of a PCI[E] device to cause a denial of service (CPU consumption and host hang) via many crafted DMA requests that are denied by the IOMMU, which triggers a livelock.

The weakness was disclosed 12/13/2012 (Website). It is possible to read the advisory at xenbits.xen.org. This vulnerability is known as CVE-2011-3131. The exploitation appears to be easy. Attacking locally is a requirement. The requirement for exploitation is a single authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 79474 (OracleVM 2.2 : xen (OVMSA-2011-0008)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family OracleVM Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 119785 (CentOS Security Update for Kernel (CESA-2011:1386)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (69179) and Tenable (79474). The entry VDB-63189 is pretty similar.

Productinfo

Type

• Virtualization Software

Vendor

• Linux Foundation

Name

• Xen

Version

• 4.1.1

License

• open-source

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 79474
Nessus Name: OracleVM 2.2 : xen (OVMSA-2011-0008)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 892582
OpenVAS Name: Debian Security Advisory DSA 2582-1 (xen - several vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/16/2011 🔍
08/11/2011 +86 days 🔍
08/15/2011 +4 days 🔍
09/06/2011 +22 days 🔍
12/13/2012 +464 days 🔍
12/13/2012 +0 days 🔍
11/26/2014 +713 days 🔍
03/24/2015 +118 days 🔍
12/20/2021 +2463 days 🔍

Sourcesinfo

Vendor: linuxfoundation.org

Advisory: dsa-2582
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-3131 (🔍)
OVAL: 🔍

X-Force: 69179
Vulnerability Center: 32982 - Xen 4.1.1 and earlier Local Denial of Service Vulnerability via Invalid DMA Requests, Low
SecurityFocus: 49146 - Xen DMA Requests IOMMU Denial of Service Vulnerability
Secunia: 45622

See also: 🔍

Entryinfo

Created: 03/24/2015 12:22
Updated: 12/20/2021 19:38
Changes: 03/24/2015 12:22 (61), 03/31/2017 12:07 (9), 12/20/2021 19:22 (6), 12/20/2021 19:29 (1), 12/20/2021 19:38 (1)
Complete: 🔍
Cache ID: 3:879:103

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