XenSource Xen 3.4/4.0/4.1/4.2/4.3 MMIO Mapping XEN_DOMCTL_memory_mapping input validation

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability, which was classified as problematic, was found in XenSource Xen 3.4/4.0/4.1/4.2/4.3 (Virtualization Software). Affected is the function XEN_DOMCTL_memory_mapping of the component MMIO Mapping. The manipulation 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.

The weakness was released 03/31/2015 by Jan Beulich with SuSE as XSA-125 as confirmed security advisory (Website). The advisory is shared for download at xenbits.xen.org. This vulnerability is traded as CVE-2015-2752 since 03/26/2015. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 83483 (OracleVM 3.2 : xen (OVMSA-2015-0058) (Venom)), 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 167942 (OpenSuSE Security Update for xen (openSUSE-SU-2015:1092-1)).

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 databases at X-Force (101905) and Tenable (83483).







CPE 2.3info

CPE 2.2info


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VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.5

VulDB Base Score: 4.0
VulDB Temp Score: 3.5
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Class: Input validation

Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

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Nessus ID: 83483
Nessus Name: OracleVM 3.2 : xen (OVMSA-2015-0058) (Venom)
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OpenVAS ID: 867773
OpenVAS Name: Fedora Update for xen FEDORA-2015-9978
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Recommended: Patch
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03/26/2015 🔍
03/31/2015 +5 days 🔍
03/31/2015 +0 days 🔍
03/31/2015 +0 days 🔍
03/31/2015 +0 days 🔍
04/01/2015 +1 days 🔍
04/01/2015 +0 days 🔍
04/01/2015 +0 days 🔍
04/02/2015 +1 days 🔍
05/15/2015 +43 days 🔍
05/02/2022 +2544 days 🔍


Vendor: citrix.com

Advisory: XSA-125
Researcher: Jan Beulich
Organization: SuSE
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-2752 (🔍)
X-Force: 101905 - Xen MMIO denial of service
SecurityTracker: 1031994 - Xen XEN_DOMCTL_memory_mapping Missing Preemption Bug Lets Local Guest Users Deny Service on the Host System
Vulnerability Center: 49311 - Xen 3.2.x through 4.5.x Local DoS via a Crafted Request to the Device Model, Medium
SecurityFocus: 72577 - Xen CVE-2015-2756 Denial of Service Vulnerability


Created: 04/01/2015 10:50 AM
Updated: 05/02/2022 07:12 AM
Changes: 04/01/2015 10:50 AM (76), 06/24/2017 09:32 AM (9), 05/02/2022 07:00 AM (3), 05/02/2022 07:12 AM (1)
Complete: 🔍
Cache ID: 100:584:40


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