Xen grant-v2 Status Frame resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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2.5$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Xen. The impacted element is an unknown function of the component grant-v2 Status Frame Handler. Performing a manipulation results in resource consumption. This vulnerability is reported as CVE-2021-28699. No exploit exists. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Xen (Virtualization Software) (affected version not known). It has been classified as problematic. This affects some unknown functionality of the component grant-v2 Status Frame Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability.

The weakness was disclosed 08/28/2021. The advisory is shared at xenbits.xenproject.org. This vulnerability is uniquely identified as CVE-2021-28699. Neither technical details nor an exploit are publicly available.

Applying a patch is able to eliminate this problem.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.6
VulDB Meta Temp Score: 2.5

VulDB Base Score: 2.6
VulDB Temp Score: 2.5
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: Resource consumption
CWE: CWE-400 / 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/18/2021 🔍
08/28/2021 +162 days 🔍
08/28/2021 +0 days 🔍
09/01/2021 +4 days 🔍

Sourcesinfo

Advisory: xenbits.xenproject.org
Status: Confirmed

CVE: CVE-2021-28699 (🔍)
GCVE (CVE): GCVE-0-2021-28699
GCVE (VulDB): GCVE-100-181617

Entryinfo

Created: 08/28/2021 06:20
Updated: 09/01/2021 14:33
Changes: 08/28/2021 06:20 (36), 09/01/2021 14:33 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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