Linux Foundation Xen get_free_port denial of service

CVSS Meta Temp Score
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CTI Interest Score
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8.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Foundation Xen. It has been classified as problematic. Affected by this issue is the function get_free_port. This manipulation causes denial of service. This vulnerability is handled as CVE-2011-1763. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Linux Foundation Xen (Virtualization Software) (unknown version) and classified as critical. Affected by this vulnerability is the function get_free_port. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The get_free_port function in Xen allows local authenticated DomU users to cause a denial of service or possibly gain privileges via unspecified vectors involving a new event channel port.

The weakness was released 01/07/2014 by Petr Matousek as Bug 701240 as not defined bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. This vulnerability is known as CVE-2011-1763. The exploitation appears to be easy. Access to the local network is required for this attack. The requirement for exploitation is a single authentication. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 67081 (CentOS 5 : kernel (CESA-2011:0833)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 119903 (VMware ESX Server Multiple Vulnerabilities (VMSA-2012-0001)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (67788), Tenable (67081), SecurityFocus (BID 48048†), Secunia (SA46397†) and Vulnerability Center (SBV-31972†). Entries connected to this vulnerability are available at VDB-55628, VDB-56087, VDB-57033 and VDB-56652. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 8.0

VulDB Base Score: 8.0
VulDB Temp Score: 8.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 67081
Nessus Name: CentOS 5 : kernel (CESA-2011:0833)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 880551
OpenVAS Name: CentOS Update for kernel CESA-2011:0833 centos5 i386
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/19/2011 🔍
05/31/2011 +42 days 🔍
05/31/2011 +0 days 🔍
06/22/2011 +22 days 🔍
01/07/2014 +930 days 🔍
01/07/2014 +0 days 🔍
03/24/2015 +441 days 🔍
01/18/2022 +2492 days 🔍

Sourcesinfo

Vendor: linuxfoundation.org

Advisory: Bug 701240
Researcher: Petr Matousek
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1763 (🔍)
GCVE (CVE): GCVE-0-2011-1763
GCVE (VulDB): GCVE-100-66001

OVAL: 🔍
IAVM: 🔍

X-Force: 67788
SecurityFocus: 48048 - Xen 'get_free_port()' Denial of Service Vulnerability
Secunia: 46397
Vulnerability Center: 31972 - Xen Local Denial of Service Vulnerability, High

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 01/18/2022 20:43
Changes: 03/24/2015 15:54 (63), 03/24/2017 16:09 (12), 01/18/2022 20:36 (4), 01/18/2022 20:43 (1)
Complete: 🔍
Cache ID: 216:6F9:103

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