AMD CPU System Call SVC_ECC_PRIMITIVE memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in AMD CPU. This impacts the function SVC_ECC_PRIMITIVE of the component System Call Handler. The manipulation results in memory corruption. This vulnerability is cataloged as CVE-2021-46779. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in AMD CPU (Chip Software) (affected version unknown). Affected is the function SVC_ECC_PRIMITIVE of the component System Call Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Insufficient input validation in SVC_ECC_PRIMITIVE system call in a compromised user application or ABL may allow an attacker to corrupt ASP (AMD Secure Processor) OS memory which may lead to potential loss of integrity and availability.

The weakness was shared 01/11/2023. The advisory is available at amd.com. This vulnerability is traded as CVE-2021-46779 since 03/31/2022. Technical details are known, but there is no available exploit.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

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: 6.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.1
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/31/2022 🔍
01/11/2023 +286 days 🔍
01/11/2023 +0 days 🔍
04/09/2025 +819 days 🔍

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CVE: CVE-2021-46779 (🔍)
GCVE (CVE): GCVE-0-2021-46779
GCVE (VulDB): GCVE-100-217974

Entryinfo

Created: 01/11/2023 14:44
Updated: 04/09/2025 21:17
Changes: 01/11/2023 14:44 (39), 02/01/2023 14:14 (11), 04/09/2025 21:17 (16)
Complete: 🔍
Cache ID: 216::103

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