Citrix Xen 4.0.0/4.1.0 resource management

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Citrix Xen 4.0.0/4.1.0. It has been classified as problematic. This impacts an unknown function. The manipulation leads to resource management. This vulnerability is uniquely identified as CVE-2012-3433. No exploit exists. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Citrix Xen 4.0.0/4.1.0 (Connectivity Software) and classified as problematic. This issue affects an unknown code block. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

Xen 4.0 and 4.1 allows local HVM guest OS kernels to cause a denial of service (domain 0 VCPU hang and kernel panic) by modifying the physical address space in a way that triggers excessive shared page search time during the p2m teardown.

The weakness was disclosed 08/09/2012 as not defined advisory (Website). It is possible to read the advisory at lists.xen.org. The identification of this vulnerability is CVE-2012-3433 since 06/14/2012. The exploitation is known to be easy. Attacking locally is a requirement. The requirement for exploitation is a simple authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 79479 (OracleVM 3.1 : xen (OVMSA-2012-0034)), 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 370049 (Citrix XenServer Security Update (CTX134708)).

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 databases at X-Force (77562), Tenable (79479), SecurityFocus (BID 54942†), OSVDB (84514†) and Secunia (SA50191†). The entries VDB-5876, VDB-6105, VDB-6107 and VDB-6108 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 79479
Nessus Name: OracleVM 3.1 : xen (OVMSA-2012-0034)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 71820
OpenVAS Name: Debian Security Advisory DSA 2531-1 (xen)
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

06/14/2012 🔍
08/09/2012 +56 days 🔍
08/09/2012 +0 days 🔍
08/09/2012 +0 days 🔍
08/09/2012 +0 days 🔍
08/11/2012 +2 days 🔍
08/15/2012 +4 days 🔍
11/15/2012 +92 days 🔍
11/24/2012 +9 days 🔍
11/26/2014 +732 days 🔍
03/27/2021 +2313 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: lists.xen.org
Status: Not defined

CVE: CVE-2012-3433 (🔍)
GCVE (CVE): GCVE-0-2012-3433
GCVE (VulDB): GCVE-100-5927

OVAL: 🔍

X-Force: 77562
SecurityFocus: 54942 - Xen CVE-2012-3433 Denial of Service Vulnerability
Secunia: 50191 - Xen HVM Guest p2m Teardown Denial of Service Vulnerability, Not Critical
OSVDB: 84514
Vulnerability Center: 37252 - Citrix XenServer, Citrix NetScaler SDX and XenSource Xen Local Denial of Service - CVE-2012-3433, Medium

See also: 🔍

Entryinfo

Created: 08/15/2012 16:46
Updated: 03/27/2021 10:19
Changes: 08/15/2012 16:46 (76), 04/21/2017 11:35 (3), 03/27/2021 10:19 (3)
Complete: 🔍
Cache ID: 216::103

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