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[email protected]CVE-2021-26404

HistoryJan 11, 2023 - 8:15 a.m.

CVE-2021-26404

2023-01-1108:15:11

CWE-20

[email protected]

web.nvd.nist.gov

cve

2021

26404

sev

firmware

input validation

bounds checking

information disclosure

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

6.2 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

8.9%

JSON

Improper input validation and bounds checking in SEV firmware may leak scratch buffer bytes leading to potential information disclosure.

Affected configurations

NVD

Node

amdepyc_7003_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_7003Match-

Node

amdepyc_7313_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_7313Match-

Node

amdepyc_7313p_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_7313pMatch-

Node

amdepyc_7343_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_7343Match-

Node

amdepyc_7373x_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_7373xMatch-

Node

amdepyc_73f3_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_73f3Match-

Node

amdepyc_7413_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_7413Match-

Node

amdepyc_7443_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_7443Match-

Node

amdepyc_7443p_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_7443pMatch-

Node

amdepyc_7453_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_7453Match-

Node

amdepyc_7473x_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_7473xMatch-

Node

amdepyc_74f3_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_74f3Match-

Node

amdepyc_7513_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_7513Match-

Node

amdepyc_7543_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_7543Match-

Node

amdepyc_7543p_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_7543pMatch-

Node

amdepyc_7573x_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_7573xMatch-

Node

amdepyc_7643_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_7643Match-

Node

amdepyc_75f3_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_75f3Match-

Node

amdepyc_7663_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_7663Match-

Node

amdepyc_7713_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_7713Match-

Node

amdepyc_7713p_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_7713pMatch-

Node

amdepyc_7763_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_7763Match-

Node

amdepyc_7773x_firmwareRange<milanpi-sp3_1.0.0.9

AND

amdepyc_7773xMatch-

CPENameOperatorVersion
amd:epyc_7003_firmwareamd epyc 7003 firmwareltmilanpi-sp3_1.0.0.9

CPE	Name	Operator	Version
amd:epyc_7003_firmware	amd epyc 7003 firmware	lt	milanpi-sp3_1.0.0.9

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "packageName": "AGESA",
    "platforms": [
      "x86"
    ],
    "product": "3rd Gen EPYC",
    "vendor": "AMD",
    "versions": [
      {
        "status": "affected",
        "version": "various "
      }
    ]
  }
]

References

www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

6.2 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

8.9%

JSON

Related for CVE-2021-26404

prion1 nvd1 cvelist1 amd1