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AMDCVE-2021-26348

HistoryMay 11, 2022 - 5:15 p.m.

CVE-2021-26348

2022-05-1117:15:08

AMD

web.nvd.nist.gov

cve-2021-26348

iommu

tlb

memory management

unauthorized access

security vulnerability

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

5.8

Confidence

High

EPSS

Percentile

12.6%

JSON

Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead an IO device to write to memory it should not be able to access, resulting in a potential loss of integrity.

Affected configurations

Nvd

Node

amdepyc_7763Match-

AND

amdepyc_7763_firmwareRange<milanpi-sp3_1.0.0.7

Node

amdepyc_7713p_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_7713pMatch-

Node

amdepyc_7713_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_7713Match-

Node

amdepyc_7663_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_7663Match-

Node

amdepyc_7643_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_7643Match-

Node

amdepyc_75f3_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_75f3Match-

Node

amdepyc_7543p_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_7543pMatch-

Node

amdepyc_7543_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_7543Match-

Node

amdepyc_7513_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_7513Match-

Node

amdepyc_7453_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_7453Match-

Node

amdepyc_74f3_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_74f3Match-

Node

amdepyc_7443p_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_7443pMatch-

Node

amdepyc_7443_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_7443Match-

Node

amdepyc_7413_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_7413Match-

Node

amdepyc_73f3_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_73f3Match-

Node

amdepyc_7343_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_7343Match-

Node

amdepyc_7313p_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_7313pMatch-

Node

amdepyc_7313_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_7313Match-

Node

amdepyc_72f3_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_72f3Match-

Node

amdepyc_7773x_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_7773xMatch-

Node

amdepyc_7473x_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_7473xMatch-

Node

amdepyc_7573x_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_7573xMatch-

Node

amdepyc_7373x_firmwareRange<milanpi-sp3_1.0.0.7

AND

amdepyc_7373xMatch-

VendorProductVersionCPE
amdepyc_7763-cpe:2.3:h:amd:epyc_7763:-:*:*:*:*:*:*:*
amdepyc_7763_firmware*cpe:2.3:o:amd:epyc_7763_firmware:*:*:*:*:*:*:*:*
amdepyc_7713p_firmware*cpe:2.3:o:amd:epyc_7713p_firmware:*:*:*:*:*:*:*:*
amdepyc_7713p-cpe:2.3:h:amd:epyc_7713p:-:*:*:*:*:*:*:*
amdepyc_7713_firmware*cpe:2.3:o:amd:epyc_7713_firmware:*:*:*:*:*:*:*:*
amdepyc_7713-cpe:2.3:h:amd:epyc_7713:-:*:*:*:*:*:*:*
amdepyc_7663_firmware*cpe:2.3:o:amd:epyc_7663_firmware:*:*:*:*:*:*:*:*
amdepyc_7663-cpe:2.3:h:amd:epyc_7663:-:*:*:*:*:*:*:*
amdepyc_7643_firmware*cpe:2.3:o:amd:epyc_7643_firmware:*:*:*:*:*:*:*:*
amdepyc_7643-cpe:2.3:h:amd:epyc_7643:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
amd	epyc_7763	-	cpe:2.3:h:amd:epyc_7763:-:::::::*
amd	epyc_7763_firmware	*	cpe:2.3:o:amd:epyc_7763_firmware::::::::
amd	epyc_7713p_firmware	*	cpe:2.3:o:amd:epyc_7713p_firmware::::::::
amd	epyc_7713p	-	cpe:2.3:h:amd:epyc_7713p:-:::::::*
amd	epyc_7713_firmware	*	cpe:2.3:o:amd:epyc_7713_firmware::::::::
amd	epyc_7713	-	cpe:2.3:h:amd:epyc_7713:-:::::::*
amd	epyc_7663_firmware	*	cpe:2.3:o:amd:epyc_7663_firmware::::::::
amd	epyc_7663	-	cpe:2.3:h:amd:epyc_7663:-:::::::*
amd	epyc_7643_firmware	*	cpe:2.3:o:amd:epyc_7643_firmware::::::::
amd	epyc_7643	-	cpe:2.3:h:amd:epyc_7643:-:::::::*

Rows per page:

1-10 of 461

CNA Affected

[
  {
    "product": "EPYC™ Processors",
    "vendor": "AMD",
    "versions": [
      {
        "status": "affected",
        "version": "various"
      }
    ]
  }
]

References

www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028

Social References

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

5.8

Confidence

High

EPSS

Percentile

12.6%

JSON

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