AMD EPYC System Call input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in AMD EPYC. Affected by this issue is some unknown functionality of the component System Call Handler. This manipulation causes input validation. This vulnerability appears as CVE-2021-46771. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in AMD EPYC (affected version not known) and classified as critical. Affected by this vulnerability is some unknown functionality of the component System Call Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 05/11/2022. The advisory is shared at amd.com. This vulnerability is known as CVE-2021-46771 since 03/31/2022. Neither technical details nor an exploit are publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: Input validation
CWE: CWE-20
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/31/2022 🔍
05/11/2022 +41 days 🔍
05/11/2022 +0 days 🔍
05/13/2022 +2 days 🔍

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CVE: CVE-2021-46771 (🔍)
GCVE (CVE): GCVE-0-2021-46771
GCVE (VulDB): GCVE-100-199453

Entryinfo

Created: 05/11/2022 09:29
Updated: 05/13/2022 12:34
Changes: 05/11/2022 09:29 (36), 05/13/2022 12:34 (1)
Complete: 🔍
Cache ID: 216::103

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