Citrix XenServer 6.0.2 PHYSDEVOP_get_free_priq MAP_PIRQ_TYPE_GSI input validation

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4.8$0-$5k0.00

A vulnerability was found in Citrix XenServer 6.0.2 (Virtualization Software). It has been rated as problematic. Affected by this issue is the function PHYSDEVOP_get_free_priq. The manipulation of the argument MAP_PIRQ_TYPE_GSI with an unknown input leads to a privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-20. Impacted is availability.

The weakness was published 09/05/2012 by Matthew Daley as 2012-09/msg00005 as confirmed posting (Maillist). The advisory is available at lists.xen.org. The public release has been coordinated with the vendor. This vulnerability is handled as CVE-2012-3498 since 06/14/2012. Local access is required to approach this attack. Required for exploitation is a simple authentication. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 62155 (Fedora 16 : xen-4.1.3-2.fc16 (2012-13443)), 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 370049 (Citrix XenServer Security Update (CTX134708)).

Applying the patch xsa16 is able to eliminate this problem. The bugfix is ready for download at lists.xen.org. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 55414), X-Force (78269), Secunia (SA50472), SecurityTracker (ID 1027483) and Vulnerability Center (SBV-37243). Similar entries are available at 5876, 5927, 6105 and 6107.

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VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.5
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

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Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-20
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 62155
Nessus Name: Fedora 16 : xen-4.1.3-2.fc16 (2012-13443)
Nessus File: 🔍
Nessus Family: 🔍

OpenVAS ID: 864722
OpenVAS Name: Fedora Update for xen FEDORA-2012-13434
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Qualys Name: 🔍

Threat Intelligenceinfoedit

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Countermeasuresinfoedit

Recommended: Patch
Status: 🔍

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Patch: xsa16

Timelineinfoedit

06/14/2012 🔍
09/05/2012 +83 days 🔍
09/05/2012 +0 days 🔍
09/05/2012 +0 days 🔍
09/05/2012 +0 days 🔍
09/05/2012 +0 days 🔍
09/10/2012 +5 days 🔍
11/15/2012 +66 days 🔍
11/23/2012 +8 days 🔍
12/26/2016 +1494 days 🔍
04/21/2017 +116 days 🔍

Sourcesinfoedit

Vendor: https://www.citrix.com/

Advisory: 2012-09/msg00005
Researcher: Matthew Daley
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2012-3498 (🔍)
SecurityFocus: 55414 - Xen 'PHYSDEVOP_map_pirq' Index CVE-2012-3498 Denial of Service Vulnerability
Secunia: 50472 - Xen Multiple Denial of Service and Privilege Escalation Vulnerabilities, Less Critical
X-Force: 78269 - Xen PHYSDEVOP_map_pirq denial of service, Medium Risk
SecurityTracker: 1027483 - Xen PHYSDEVOP_map_pirq() Index Validation Flaw Lets Local Guest Operating Systems Cause Denial of Service Conditions on the Host Operating System
Vulnerability Center: 37243 - Citrix XenServer, Citrix NetScaler SDX and XenSource Xen Local Denial of Service - CVE-2012-3498, Medium
OSVDB: 85198

See also: 🔍

Entryinfoedit

Created: 09/10/2012 12:36 PM
Updated: 04/21/2017 11:32 AM
Changes: (4) source_securityfocus_date source_securityfocus_class source_sectracker_date source_sectracker_cause
Complete: 🔍
Committer: olku

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