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[email protected]CVE-2021-26338

HistoryNov 16, 2021 - 6:15 p.m.

CVE-2021-26338

2021-11-1618:15:07

CWE-284

[email protected]

web.nvd.nist.gov

cve-2021-26338

improper access controls

system management unit

smu

performance control tables

dram

system resources

7.8 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.4 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

44.0%

JSON

Improper access controls in System Management Unit (SMU) may allow for an attacker to override performance control tables located in DRAM resulting in a potential lack of system resources.

Affected configurations

NVD

Node

amdepyc_7f72_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7f72Match-

Node

amdepyc_7f52_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7f52Match-

Node

amdepyc_7f32_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7f32Match-

Node

amdepyc_7h12_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7h12Match-

Node

amdepyc_7742_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7742Match-

Node

amdepyc_7702_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7702Match-

Node

amdepyc_7702p_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7702pMatch-

Node

amdepyc_7662_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7662Match-

Node

amdepyc_7642_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7642Match-

Node

amdepyc_7552_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7552Match-

Node

amdepyc_7542_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7542Match-

Node

amdepyc_7532_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7532Match-

Node

amdepyc_7502_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7502Match-

Node

amdepyc_7502p_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7502pMatch-

Node

amdepyc_7452_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7452Match-

Node

amdepyc_7402_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7402Match-

Node

amdepyc_7402p_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7402pMatch-

Node

amdepyc_7352_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7352Match-

Node

amdepyc_7302_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7302Match-

Node

amdepyc_7302p_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7302pMatch-

Node

amdepyc_7282_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7282Match-

Node

amdepyc_7272_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7272Match-

Node

amdepyc_7262_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7262Match-

Node

amdepyc_7252_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7252Match-

Node

amdepyc_7232p_firmwareRange<romepi-sp3_1.0.0.c

AND

amdepyc_7232pMatch-

Node

amdepyc_7763_firmwareRange<milanpi-sp3_1.0.0.4

AND

amdepyc_7763Match-

Node

amdepyc_7713p_firmwareRange<milanpi-sp3_1.0.0.4

AND

amdepyc_7713pMatch-

Node

amdepyc_7713_firmwareRange<milanpi-sp3_1.0.0.4

AND

amdepyc_7713Match-

Node

amdepyc_7663_firmwareRange<milanpi-sp3_1.0.0.4

AND

amdepyc_7663Match-

Node

amdepyc_7643_firmwareRange<milanpi-sp3_1.0.0.4

AND

amdepyc_7643Match-

Node

amdepyc_75f3_firmwareRange<milanpi-sp3_1.0.0.4

AND

amdepyc_75f3Match-

Node

amdepyc_7543p_firmwareRange<milanpi-sp3_1.0.0.4

AND

amdepyc_7543pMatch-

Node

amdepyc_7543_firmwareRange<milanpi-sp3_1.0.0.4

AND

amdepyc_7543Match-

Node

amdepyc_7513_firmwareRange<milanpi-sp3_1.0.0.4

AND

amdepyc_7513Match-

Node

amdepyc_7453_firmwareRange<milanpi-sp3_1.0.0.4

AND

amdepyc_7453Match-

Node

amdepyc_74f3_firmwareRange<milanpi-sp3_1.0.0.4

AND

amdepyc_74f3Match-

Node

amdepyc_7443p_firmwareRange<milanpi-sp3_1.0.0.4

AND

amdepyc_7443pMatch-

Node

amdepyc_7443_firmwareRange<milanpi-sp3_1.0.0.4

AND

amdepyc_7443Match-

Node

amdepyc_7413_firmwareRange<milanpi-sp3_1.0.0.4

AND

amdepyc_7413Match-

Node

amdepyc_73f3_firmwareRange<milanpi-sp3_1.0.0.4

AND

amdepyc_73f3Match-

Node

amdepyc_7343_firmwareRange<milanpi-sp3_1.0.0.4

AND

amdepyc_7343Match-

Node

amdepyc_7313p_firmwareRange<milanpi-sp3_1.0.0.4

AND

amdepyc_7313pMatch-

Node

amdepyc_7313_firmwareRange<milanpi-sp3_1.0.0.4

AND

amdepyc_7313Match-

Node

amdepyc_72f3_firmwareRange<milanpi-sp3_1.0.0.4

AND

amdepyc_72f3Match-

CPENameOperatorVersion
amd:epyc_7f72_firmwareamd epyc 7f72 firmwareltromepi-sp3_1.0.0.c

CPE	Name	Operator	Version
amd:epyc_7f72_firmware	amd epyc 7f72 firmware	lt	romepi-sp3_1.0.0.c

CNA Affected

[
  {
    "product": "2nd Gen AMD EPYC™",
    "vendor": "AMD",
    "versions": [
      {
        "lessThan": "RomePI-SP3_1.0.0.C",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "3rd Gen AMD EPYC™",
    "vendor": "AMD",
    "versions": [
      {
        "lessThan": "MilanPI-SP3_1.0.0.4",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021

7.8 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.4 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

44.0%

JSON

Related for CVE-2021-26338

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