Linux Foundation Xen up to 4.3.0 MSI Interrupt access control

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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Foundation Xen. This affects an unknown part of the component MSI Interrupt Handler. Performing a manipulation results in access control. This vulnerability was named CVE-2013-3495. There is no available exploit.

Detailsinfo

A vulnerability was found in Linux Foundation Xen (Virtualization Software). It has been classified as problematic. This affects some unknown processing of the component MSI Interrupt Handler. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on availability. The summary by CVE is:

The Intel VT-d Interrupt Remapping engine in Xen 3.3.x through 4.3.x allows local guests to cause a denial of service (kernel panic) via a malformed Message Signaled Interrupt (MSI) from a PCI device that is bus mastering capable that triggers a System Error Reporting (SERR) Non-Maskable Interrupt (NMI).

The weakness was presented 08/20/2013 by Gabor Pek as confirmed mailinglist post (oss-sec). It is possible to read the advisory at seclists.org. The public release was coordinated in cooperation with Linux Foundation. This vulnerability is uniquely identified as CVE-2013-3495 since 05/07/2013. The exploitability is told to be difficult. Attacking locally is a requirement. Required for exploitation is a authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 83717 (SUSE SLES10 Security Update : Xen (SUSE-SU-2015:0744-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 167732 (SUSE Enterprise Linux Security update for Xen (SUSE-SU-2015:0744-1)).

A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (86530), Tenable (83717), SecurityFocus (BID 61854†), OSVDB (96438†) and Secunia (SA54341†). See VDB-67313 and VDB-67314 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

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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: 4.7

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

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
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: 83717
Nessus Name: SUSE SLES10 Security Update : Xen (SUSE-SU-2015:0744-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

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Timelineinfo

05/07/2013 🔍
08/20/2013 +105 days 🔍
08/20/2013 +0 days 🔍
08/20/2013 +0 days 🔍
08/20/2013 +0 days 🔍
08/21/2013 +1 days 🔍
08/23/2013 +2 days 🔍
08/28/2013 +5 days 🔍
05/20/2015 +630 days 🔍
05/21/2021 +2193 days 🔍

Sourcesinfo

Vendor: linuxfoundation.org

Advisory: seclists.org
Researcher: Gabor Pek
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2013-3495 (🔍)
GCVE (CVE): GCVE-0-2013-3495
GCVE (VulDB): GCVE-100-10023
X-Force: 86530
SecurityFocus: 61854 - Xen CVE-2013-3495 Local Denial of Service Vulnerability
Secunia: 54341 - Xen MSI Interrupt Remapping Denial of Service Vulnerability, Not Critical
OSVDB: 96438
SecurityTracker: 1028931
Vulnerability Center: 41159 - Xen Server 3.3 Through 4.3.0-rc6 Local Denial of Service via Malformed MSIs When SERR is Enabled, Low

See also: 🔍

Entryinfo

Created: 08/23/2013 12:59
Updated: 05/21/2021 16:46
Changes: 08/23/2013 12:59 (75), 05/09/2017 10:22 (3), 05/21/2021 16:38 (3), 05/21/2021 16:46 (1)
Complete: 🔍
Committer:
Cache ID: 216::103

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