Linux Foundation Xen denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Foundation Xen. It has been rated as problematic. This vulnerability affects unknown code. Performing a manipulation results in denial of service. This vulnerability was named CVE-2011-1936. There is no available exploit.

Detailsinfo

A vulnerability was found in Linux Foundation Xen (Virtualization Software) (version unknown). It has been classified as problematic. This affects an unknown function. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

Xen, when using x86 Intel processors and the VMX virtualization extension is enabled, does not properly handle cpuid instruction emulation when exiting the VM, which allows local guest users to cause a denial of service (guest crash) via unspecified vectors.

The weakness was presented 01/07/2014 (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is uniquely identified as CVE-2011-1936 since 05/09/2011. The exploitability is told to be difficult. The attack needs to approached within the local network. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 57266 (SuSE 10 Security Update : Xen (ZYPP Patch Number 7654)), 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 119551 (CentOS Security Update for Kernel (CESA-2011:0927)).

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 (68424), Tenable (57266), Secunia (SA43693†) and Vulnerability Center (SBV-42835†). See VDB-66002, VDB-66001 and VDB-66000 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
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: 57266
Nessus Name: SuSE 10 Security Update : Xen (ZYPP Patch Number 7654)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 880545
OpenVAS Name: CentOS Update for kernel CESA-2011:0927 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

05/09/2011 🔍
07/07/2011 +59 days 🔍
12/13/2011 +159 days 🔍
01/07/2014 +756 days 🔍
01/07/2014 +0 days 🔍
01/09/2014 +2 days 🔍
03/24/2015 +439 days 🔍
01/18/2022 +2492 days 🔍

Sourcesinfo

Vendor: linuxfoundation.org

Advisory: RHSA-2011:0927
Status: Not defined

CVE: CVE-2011-1936 (🔍)
GCVE (CVE): GCVE-0-2011-1936
GCVE (VulDB): GCVE-100-66003

OVAL: 🔍
IAVM: 🔍

X-Force: 68424
Secunia: 43693
Vulnerability Center: 42835 - Xen Local Denial of Service Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 01/18/2022 21:18
Changes: 03/24/2015 15:54 (68), 05/19/2017 10:40 (2), 01/18/2022 21:05 (3), 01/18/2022 21:18 (1)
Complete: 🔍
Cache ID: 216::103

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