AMD EPYC Translation Lookaside Buffer buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in AMD EPYC and classified as critical. This impacts an unknown function of the component Translation Lookaside Buffer Handler. This manipulation causes buffer overflow. This vulnerability is registered as CVE-2021-26348. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in AMD EPYC (the affected version unknown) and classified as critical. Affected by this vulnerability is an unknown part of the component Translation Lookaside Buffer Handler. 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 published 05/12/2022. It is possible to read the advisory at amd.com. This vulnerability is known as CVE-2021-26348 since 01/29/2021. The technical details are unknown and an exploit is not 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: 8.0
VulDB Meta Temp Score: 7.6

VulDB Base Score: 8.0
VulDB Temp Score: 7.6
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: 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: 🔍

Timelineinfo

01/29/2021 🔍
05/12/2022 +467 days 🔍
05/12/2022 +0 days 🔍
05/14/2022 +2 days 🔍

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CVE: CVE-2021-26348 (🔍)
GCVE (CVE): GCVE-0-2021-26348
GCVE (VulDB): GCVE-100-199615

Entryinfo

Created: 05/12/2022 10:55
Updated: 05/14/2022 12:38
Changes: 05/12/2022 10:55 (37), 05/14/2022 12:38 (1)
Complete: 🔍
Cache ID: 216::103

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