ACRN up to 2.4 vtd.c dmar_free_irte buffer overflow

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

Summaryinfo

A vulnerability marked as critical has been reported in ACRN up to 2.4. Affected by this issue is the function dmar_free_irte of the file hypervisor/arch/x86/vtd.c. This manipulation causes buffer overflow. This vulnerability is tracked as CVE-2021-36148. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in ACRN up to 2.4. It has been declared as critical. Affected by this vulnerability is the function dmar_free_irte of the file hypervisor/arch/x86/vtd.c. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 07/03/2021 as 25c0e3817eb332660dd63d1d4522e63dcc94e79a. The advisory is shared at github.com. This vulnerability is known as CVE-2021-36148. Technical details are known, but no exploit is available.

Upgrading to version 2.5 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
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: Buffer overflow
CWE: CWE-120 / CWE-119
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ACRN 2.5
Patch: github.com

Timelineinfo

07/02/2021 🔍
07/03/2021 +1 days 🔍
07/03/2021 +0 days 🔍
07/09/2021 +6 days 🔍

Sourcesinfo

Advisory: 25c0e3817eb332660dd63d1d4522e63dcc94e79a
Status: Confirmed

CVE: CVE-2021-36148 (🔍)
GCVE (CVE): GCVE-0-2021-36148
GCVE (VulDB): GCVE-100-177937

Entryinfo

Created: 07/03/2021 08:40
Updated: 07/09/2021 15:29
Changes: 07/03/2021 08:40 (40), 07/09/2021 15:29 (5)
Complete: 🔍
Cache ID: 216::103

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

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