CVE-2021-26353

CVSS V2 High 7.2 CVSS V3 High 7.8
Description
Failure to validate inputs in SMM may allow an attacker to create a mishandled error leaving the DRTM UApp in a partially initialized state potentially resulting in loss of memory integrity.
Overview
  • CVE ID
  • CVE-2021-26353
  • Assigner
  • psirt@amd.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2022-05-10T19:15:08
  • Last Modified Date
  • 2023-01-11T08:15:11
Weakness Enumerations
CWE URL
CWE-665 http://cwe.mitre.org/data/definitions/665.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:amd:epyc_7763_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_7763:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_7713p_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_7713p:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_7713_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_7713:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_7663_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_7663:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_7643_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_7643:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_75f3_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_75f3:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_7543p_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_7543p:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_7543_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_7543:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_7513_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_7513:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_7453_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_7453:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_74f3_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_74f3:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_7443p_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_7443p:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_7443_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_7443:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_7413_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_7413:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_73f3_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_73f3:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_7343_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_7343:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_7313p_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_7313p:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_7313_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_7313:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_72f3_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_72f3:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_7773x_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_7773x:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_7473x_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_7473x:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_7573x_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_7573x:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:amd:epyc_7373x_firmware:*:*:*:*:*:*:*:* 1 OR milanpi-sp3_1.0.0.4
cpe:2.3:h:amd:epyc_7373x:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:C/I:C/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.2
  • Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7.8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.8
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-26353
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26353
History
Created Old Value New Value Data Type Notes
2022-05-10 20:00:23 Added to TrackCVE
2023-01-12 05:14:11 2023-01-11T08:15:11 CVE Modified Date updated
2023-01-12 05:14:11 Analyzed Modified Vulnerability Status updated
2023-01-12 05:14:12 Due to a mishandled error, it is possible to leave the DRTM UApp in a partially initialized state, which can result in unchecked memory writes when the UApp handles subsequent mailbox commands. Failure to validate inputs in SMM may allow an attacker to create a mishandled error leaving the DRTM UApp in a partially initialized state potentially resulting in loss of memory integrity. Description updated