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.
5.3	$0-$5k	0.00

A vulnerability, which was classified as problematic, was found in Linux Foundation Xen up to 4.2.2 (Virtualization Software). Affected is the function XSETBV. The manipulation of the argument XSAVE with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. CVE summarizes:

Xen 4.0.2 through 4.0.4, 4.1.x, and 4.2.x allows local PV guest users to cause a denial of service (hypervisor crash) via certain bit combinations to the XSETBV instruction.

The weakness was published 06/03/2013 with Xen.org Security Team as not defined mailinglist post (oss-sec). The advisory is shared for download at seclists.org. This vulnerability is traded as CVE-2013-2078 since 02/19/2013. The attack needs to be approached locally. The successful exploitation needs a authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 67269 (Fedora 18 : xen-4.2.2-6.fc18 (2013-10136)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166413 (OpenSuSE Security Update for XEN (openSUSE-SU-2013:1392-1)).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (67269). Similar entries are available at 8938 and 8939.

Productinfo

Type

• Virtualization Software

Vendor

• Linux Foundation

Name

• Xen

Version

• 4.0.2
• 4.0.3
• 4.0.4
• 4.1.0
• 4.1.1
• 4.1.2
• 4.1.3
• 4.1.4
• 4.1.5
• 4.2.0
• 4.2.1
• 4.2.2

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: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
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: Input validation
CWE: CWE-20
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: 67269
Nessus Name: Fedora 18 : xen-4.2.2-6.fc18 (2013-10136)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 865902
OpenVAS Name: Fedora Update for xen FEDORA-2013-10136
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

02/19/2013 🔍
06/03/2013 +103 days 🔍
06/03/2013 +0 days 🔍
06/03/2013 +0 days 🔍
06/03/2013 +0 days 🔍
06/04/2013 +1 days 🔍
06/05/2013 +1 days 🔍
08/14/2013 +70 days 🔍
10/07/2013 +54 days 🔍
05/14/2021 +2776 days 🔍

Sourcesinfo

Vendor: linuxfoundation.org

Advisory: seclists.org
Organization: Xen.org Security Team
Status: Not defined

CVE: CVE-2013-2078 (🔍)
OVAL: 🔍

SecurityTracker: 1028613
Vulnerability Center: 41792 - XenSource Xen Local DOS Vulnerability Via Certain Bit Combination, Low
SecurityFocus: 60278
Secunia: 53591 - Xen XSAVE Support Information Disclosure and Denial of Service Vulnerabilities, Not Critical
OSVDB: 93822

See also: 🔍

Entryinfo

Created: 06/05/2013 11:13
Updated: 05/14/2021 09:34
Changes: 06/05/2013 11:13 (75), 05/12/2017 21:43 (2), 05/14/2021 09:26 (3), 05/14/2021 09:30 (2), 05/14/2021 09:34 (1)
Complete: 🔍

Discussion

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