HyperKit up to 0.20210107 Disk Driver out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in HyperKit up to 0.20210107. Affected is an unknown function of the component Disk Driver. Performing a manipulation results in out-of-bounds. This vulnerability is reported as CVE-2021-32847. The attack requires a local approach. No exploit exists. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability classified as problematic has been found in HyperKit up to 0.20210107. This affects some unknown functionality of the component Disk Driver. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality. The summary by CVE is:

HyperKit is a toolkit for embedding hypervisor capabilities in an application. In versions 0.20210107 and prior, a malicious guest can trigger a vulnerability in the host by abusing the disk driver that may lead to the disclosure of the host memory into the virtualized guest. This issue is fixed in commit cf60095a4d8c3cb2e182a14415467afd356e982f.

The weakness was disclosed 02/20/2023 as GHSL-2021-058. The advisory is shared at securitylab.github.com. This vulnerability is uniquely identified as CVE-2021-32847 since 05/12/2021. Neither technical details nor an exploit are publicly available.

Applying the patch cf60095a4d8c3cb2e182a14415467afd356e982f is able to eliminate this problem. The bugfix is ready for download at github.com.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.6

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 7.1
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: cf60095a4d8c3cb2e182a14415467afd356e982f

Timelineinfo

05/12/2021 🔍
02/20/2023 +649 days 🔍
02/20/2023 +0 days 🔍
03/23/2023 +31 days 🔍

Sourcesinfo

Advisory: GHSL-2021-058
Status: Confirmed

CVE: CVE-2021-32847 (🔍)
GCVE (CVE): GCVE-0-2021-32847
GCVE (VulDB): GCVE-100-221517

Entryinfo

Created: 02/20/2023 20:26
Updated: 03/23/2023 13:57
Changes: 02/20/2023 20:26 (50), 03/23/2023 13:57 (12)
Complete: 🔍
Cache ID: 216::103

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