openEuler Kernel SVM Driver drivers/char/svm.c routine

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in openEuler Kernel. The impacted element is an unknown function of the file drivers/char/svm.c of the component SVM Driver. The manipulation results in routine. This vulnerability is identified as CVE-2021-33639. The attack is only possible with local access. There is not any exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in openEuler Kernel (affected version unknown). Affected is an unknown functionality of the file drivers/char/svm.c of the component SVM Driver. The manipulation with an unknown input leads to a routine vulnerability. CWE is classifying the issue as CWE-749. The product provides an Applications Programming Interface (API) or similar interface for interaction with external actors, but the interface includes a dangerous method or function that is not properly restricted. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

REMAP cmd of SVM driver can be used to remap read only memory as read-write, then cause read only memory/file modified.

The weakness was released 03/09/2023 as e4d0684a3ce68e7f8e11408121e791cd80312b27. The advisory is shared for download at gitee.com. This vulnerability is traded as CVE-2021-33639 since 05/28/2021. There are known technical details, but no exploit is available.

Applying the patch e4d0684a3ce68e7f8e11408121e791cd80312b27 is able to eliminate this problem. The bugfix is ready for download at gitee.com.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: 🔍

Exploitinginfo

Class: Routine
CWE: CWE-749
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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: e4d0684a3ce68e7f8e11408121e791cd80312b27

Timelineinfo

05/28/2021 🔍
03/09/2023 +650 days 🔍
03/09/2023 +0 days 🔍
04/02/2023 +24 days 🔍

Sourcesinfo

Product: gitee.com

Advisory: e4d0684a3ce68e7f8e11408121e791cd80312b27
Status: Confirmed

CVE: CVE-2021-33639 (🔍)
GCVE (CVE): GCVE-0-2021-33639
GCVE (VulDB): GCVE-100-222636

Entryinfo

Created: 03/09/2023 06:55
Updated: 04/02/2023 08:27
Changes: 03/09/2023 06:55 (41), 04/02/2023 08:27 (11)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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