AMD EPYC ASP denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in AMD EPYC. This affects an unknown part of the component ASP. The manipulation results in denial of service. This vulnerability is identified as CVE-2021-46755. There is not any exploit available.

Detailsinfo

A vulnerability was found in AMD EPYC (affected version unknown). It has been classified as problematic. Affected is an unknown functionality of the component ASP. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

Failure to unmap certain SysHub mappings in error paths of the ASP (AMD Secure Processor) bootloader may allow an attacker with a malicious bootloader to exhaust the SysHub resources resulting in a potential denial of service.

The weakness was released 05/09/2023. The advisory is shared for download at amd.com. This vulnerability is traded as CVE-2021-46755 since 03/31/2022. There are neither technical details nor an exploit publicly available.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.9

VulDB Base Score: 5.7
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: 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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/31/2022 🔍
05/09/2023 +404 days 🔍
05/09/2023 +0 days 🔍
01/28/2025 +630 days 🔍

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CVE: CVE-2021-46755 (🔍)
GCVE (CVE): GCVE-0-2021-46755
GCVE (VulDB): GCVE-100-228516

Entryinfo

Created: 05/09/2023 23:41
Updated: 01/28/2025 18:11
Changes: 05/09/2023 23:41 (37), 06/01/2023 20:53 (11), 01/28/2025 18:11 (26)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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