ACRN up to 2.2 virtio.c paddr_guest2host null pointer dereference

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

Summaryinfo

A vulnerability classified as problematic has been found in ACRN up to 2.2. This impacts the function paddr_guest2host of the file devicemodel/hw/pci/virtio/virtio.c. Performing a manipulation results in null pointer dereference. This vulnerability is reported as CVE-2020-28346. No exploit exists. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in ACRN up to 2.2. It has been classified as problematic. This affects the function paddr_guest2host of the file devicemodel/hw/pci/virtio/virtio.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability.

The weakness was disclosed 03/26/2021. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2020-28346. Technical details of the vulnerability are known, but there is no available exploit.

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

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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: github.com

Timelineinfo

11/08/2020 🔍
03/26/2021 +138 days 🔍
03/26/2021 +0 days 🔍
04/05/2021 +10 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2020-28346 (🔍)
GCVE (CVE): GCVE-0-2020-28346
GCVE (VulDB): GCVE-100-171807

Entryinfo

Created: 03/26/2021 13:29
Updated: 04/05/2021 13:57
Changes: 03/26/2021 13:29 (38), 04/05/2021 13:55 (5), 04/05/2021 13:57 (18)
Complete: 🔍
Cache ID: 216::103

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