AMD CPU Speculative Execution timing discrepancy

CVSS Meta Temp Score
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CTI Interest Score
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2.6$0-$5k0.00

A vulnerability classified as problematic has been found in AMD CPU (Chip Software) (the affected version unknown). This affects an unknown part of the component Speculative Execution. The manipulation with an unknown input leads to a timing discrepancy vulnerability. CWE is classifying the issue as CWE-208. Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not. This is going to have an impact on confidentiality.

The weakness was disclosed 06/10/2021. The advisory is shared at amd.com. This vulnerability is uniquely identified as CVE-2021-26313. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

It is possible to mitigate the problem by applying the configuration setting .

Productinfo

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Vendor

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.6
VulDB Meta Temp Score: 2.6

VulDB Base Score: 2.6
VulDB Temp Score: 2.6
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: Timing discrepancy
CWE: CWE-208 / CWE-203 / CWE-200
CAPEC: 🔍
ATT&CK: 🔍

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: Config
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/29/2021 🔍
06/10/2021 +131 days 🔍
06/10/2021 +0 days 🔍
06/12/2021 +2 days 🔍

Sourcesinfo

Advisory: amd.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-26313 (🔍)

Entryinfo

Created: 06/10/2021 09:06
Updated: 06/12/2021 13:38
Changes: 06/10/2021 09:06 (36), 06/12/2021 13:38 (4)
Complete: 🔍

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