Citrix Xen up to 4.2.1 Per-Domain Event Channel Tracking Tables access control

CVSS Meta Temp Score
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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
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A vulnerability was found in Citrix Xen (Connectivity Software). It has been classified as critical. Affected is some unknown functionality of the component Per-Domain Event Channel Tracking Tables. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 04/04/2013 as confirmed advisory (Website). The advisory is available at The public release was coordinated in cooperation with the vendor. This vulnerability is traded as CVE-2013-1920 since 02/19/2013. The exploitability is told to be easy. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 70184 (GLSA-201309-24 : Xen: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166818 (SUSE Enterprise Linux Security Update for Xen (SUSE-SU-2014:0411-1)).

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

The vulnerability is also documented in the databases at SecurityFocus (BID 58880), X-Force (83226), Secunia (SA52857), SecurityTracker (ID 1028388) and Vulnerability Center (SBV-39270). See 6818, 7241, 8473 and 63038 for similar entries.





CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.9

VulDB Base Score: 9.3
VulDB Temp Score: 8.9
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VulDB Reliability: 🔍



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Class: Privilege escalation
CWE: CWE-264
ATT&CK: T1068

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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Current Price Estimation: 🔍


Nessus ID: 70184
Nessus Name: GLSA-201309-24 : Xen: Multiple vulnerabilities
Nessus File: 🔍
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OpenVAS ID: 865902
OpenVAS Name: Fedora Update for xen FEDORA-2013-10136
OpenVAS File: 🔍
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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfoedit

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Recommended: Patch
Status: 🔍

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02/19/2013 🔍
04/04/2013 +44 days 🔍
04/04/2013 +0 days 🔍
04/04/2013 +0 days 🔍
04/04/2013 +0 days 🔍
04/04/2013 +0 days 🔍
04/05/2013 +1 days 🔍
04/08/2013 +3 days 🔍
04/12/2013 +4 days 🔍
04/21/2013 +9 days 🔍
01/05/2017 +1355 days 🔍
04/27/2017 +112 days 🔍



Status: Confirmed
Coordinated: 🔍

CVE: CVE-2013-1920 (🔍)

SecurityFocus: 58880 - Xen CVE-2013-1920 Memory Corruption Vulnerability
Secunia: 52857 - Xen Event Channel Operations Privilege Escalation Vulnerability, Less Critical
X-Force: 83226
SecurityTracker: 1028388 - Xen Event Channel Tracking Pointer Bug Local Privilege Escalation
Vulnerability Center: 39270 - Xen Use-After-Free Vulnerability Allows Local Arbitrary Events Injection and Privilege Escalation, Low
OSVDB: 92050

See also: 🔍


Created: 04/08/2013 04:09 PM
Updated: 04/27/2017 05:17 PM
Changes: (6) source_oval_id source_secunia_date source_securityfocus_date source_securityfocus_class source_sectracker_date source_sectracker_cause
Complete: 🔍


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