Linux Foundation Xen 4.4 on ARM GIC denial of service

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

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Linux Foundation Xen 4.4 on ARM. Affected is an unknown function of the component GIC. The manipulation leads to denial of service. No exploit is available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in Linux Foundation Xen 4.4 on ARM (Virtualization Software) and classified as problematic. This issue affects an unknown functionality of the component GIC. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was published 01/29/2015 as XSA-118 as confirmed advisory (Website). It is possible to read the advisory at xenbits.xen.org. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The advisory points out:

On ARM systems the code which deals with virtualising the GIC distributor would, under various circumstances, log messages on a guest accessible code path without appropriate rate limiting.

Applying a patch 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 vulnerability database at X-Force (100645). Similar entries are available at VDB-68962 and VDB-74142. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Website

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

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

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Unproven
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Timelineinfo

01/29/2015 🔍
01/29/2015 +0 days 🔍
02/05/2015 +7 days 🔍
03/09/2019 +1493 days 🔍

Sourcesinfo

Vendor: linuxfoundation.org

Advisory: XSA-118
Status: Confirmed

GCVE (VulDB): GCVE-100-69035
X-Force: 100645 - Xen GIC denial of service, Medium Risk

See also: 🔍

Entryinfo

Created: 02/05/2015 13:59
Updated: 03/09/2019 08:46
Changes: 02/05/2015 13:59 (43), 03/09/2019 08:46 (5)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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