Citrix Xen 4.0.0/4.1.0 denial of service

CVSS Meta Temp Score
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CTI Interest Score
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4.5$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Citrix Xen 4.0.0/4.1.0. Affected is an unknown function. Executing a manipulation can lead to denial of service. The identification of this vulnerability is CVE-2012-2934. The attack can only be executed locally. There is no exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability classified as problematic was found in Citrix Xen 4.0.0/4.1.0 (Connectivity Software). This vulnerability affects an unknown part. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

Xen 4.0, and 4.1, when running a 64-bit PV guest on "older" AMD CPUs, does not properly protect against a certain AMD processor bug, which allows local guest OS users to cause a denial of service (host hang) via sequential execution of instructions across a non-canonical boundary, a different vulnerability than CVE-2012-0217.

The weakness was shared 06/12/2012 as Xen Security Advisory 9 as confirmed advisory (Website). The advisory is available at lists.xen.org. This vulnerability was named CVE-2012-2934 since 05/24/2012. The exploitation appears to be difficult. Local access is required to approach this attack. A single authentication is necessary for exploitation. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 59479 (CentOS 5 : kernel (CESA-2012:0721)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 120420 (CentOS Security Update for Kernel (CESA-2012:0721)).

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 (76226), Tenable (59479), SecurityFocus (BID 53961†), OSVDB (82933†) and Secunia (SA49381†). The entries VDB-5555 and VDB-5556 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.5

VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Denial of service
CWE: 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: 59479
Nessus Name: CentOS 5 : kernel (CESA-2012:0721)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 71479
OpenVAS Name: Debian Security Advisory DSA 2501-1 (xen)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
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Timelineinfo

05/24/2012 🔍
06/12/2012 +19 days 🔍
06/12/2012 +0 days 🔍
06/12/2012 +0 days 🔍
06/12/2012 +0 days 🔍
06/12/2012 +0 days 🔍
06/12/2012 +0 days 🔍
06/13/2012 +1 days 🔍
06/20/2012 +7 days 🔍
06/21/2012 +1 days 🔍
12/03/2012 +165 days 🔍
03/25/2021 +3034 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: Xen Security Advisory 9
Status: Confirmed

CVE: CVE-2012-2934 (🔍)
GCVE (CVE): GCVE-0-2012-2934
GCVE (VulDB): GCVE-100-5554

OVAL: 🔍

X-Force: 76226
SecurityFocus: 53961 - Xen 64-bit PV Guests Local Denial of Service Vulnerability
Secunia: 49381 - Xen Privilege Escalation and Denial of Service Vulnerabilities, Less Critical
OSVDB: 82933
SecurityTracker: 1027168 - Xen AMD Processing Flaw Lets Local Guest System Users Deny Service
Vulnerability Center: 35396 - Xen 4.0 Through 4.1.2 Local Denial of Service Vulnerability, Low

See also: 🔍

Entryinfo

Created: 06/20/2012 11:21
Updated: 03/25/2021 16:17
Changes: 06/20/2012 11:21 (72), 04/19/2017 10:29 (13), 03/25/2021 16:17 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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