Linux Foundation Xen up to 4.2.2 MSI Interrupts/Bridges input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Foundation Xen up to 4.2.2 and classified as problematic. This impacts an unknown function of the component MSI Interrupts/Bridges. Such manipulation leads to input validation. This vulnerability is referenced as CVE-2013-1952. No exploit is available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Linux Foundation Xen up to 4.2.2 (Virtualization Software) and classified as problematic. Affected by this issue is an unknown code of the component MSI Interrupts/Bridges. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. CVE summarizes:

Xen 4.x, when using Intel VT-d for a bus mastering capable PCI device, does not properly check the source when accessing a bridge device s interrupt remapping table entries for MSI interrupts, which allows local guest domains to cause a denial of service (interrupt injection) via unspecified vectors.

The weakness was published 05/02/2013 with Xen.org Security Team as confirmed mailinglist post (oss-sec). The advisory is shared for download at openwall.com. This vulnerability is handled as CVE-2013-1952 since 02/19/2013. The exploitation is known to be easy. The attack needs to be approached locally. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 66383 (Debian DSA-2666-1 : xen - several vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370044 (Citrix XenServer Security Update (CTX137657)).

Applying the patch 4.2.x 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 (83968), Tenable (66383), SecurityFocus (BID 59617†), OSVDB (92984†) and Secunia (SA53312†). Similar entries are available at VDB-8472, VDB-8474 and VDB-8599. 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: 6.2
VulDB Meta Temp Score: 5.4

VulDB Base Score: 6.2
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 66383
Nessus Name: Debian DSA-2666-1 : xen - several vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 892666
OpenVAS Name: Debian Security Advisory DSA 2666-1 (xen - several vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: 4.2.x

Timelineinfo

02/19/2013 🔍
05/02/2013 +72 days 🔍
05/02/2013 +0 days 🔍
05/02/2013 +0 days 🔍
05/02/2013 +0 days 🔍
05/03/2013 +1 days 🔍
05/06/2013 +3 days 🔍
05/13/2013 +7 days 🔍
05/14/2013 +1 days 🔍
05/10/2021 +2918 days 🔍

Sourcesinfo

Vendor: linuxfoundation.org

Advisory: openwall.com
Organization: Xen.org Security Team
Status: Confirmed

CVE: CVE-2013-1952 (🔍)
GCVE (CVE): GCVE-0-2013-1952
GCVE (VulDB): GCVE-100-8600

OVAL: 🔍
IAVM: 🔍

X-Force: 83968 - Xen denial of service, Low Risk
SecurityFocus: 59617 - Xen CVE-2013-1952 Local Denial of Service Vulnerability
Secunia: 53312 - Xen Interrupt Remapping Source Validation Denial of Service Vulnerability, Not Critical
OSVDB: 92984
Vulnerability Center: 39546 - XenSource Xen and Citrix XenServer Local Denial of Service Vulnerability due to Improperly Checking the Source When Accessing Certain Bridge Device\x27s Information, Low

See also: 🔍

Entryinfo

Created: 05/06/2013 17:26
Updated: 05/10/2021 14:13
Changes: 05/06/2013 17:26 (83), 04/29/2017 20:49 (4), 05/10/2021 14:13 (2)
Complete: 🔍
Committer:
Cache ID: 216:C2F:103

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