CVE-2021-21554
CVSS V2 High 7.2
CVSS V3 Medium 6.7
Description
Dell PowerEdge R640, R740, R740XD, R840, R940, R940xa, MX740c, MX840c, and, Dell Precision 7920 Rack Workstation BIOS contain a stack-based buffer overflow vulnerability in systems with Intel Optane DC Persistent Memory installed. A local malicious user with high privileges may potentially exploit this vulnerability, leading to a denial of Service, arbitrary code execution, or information disclosure in UEFI or BIOS Preboot Environment.
Overview
- CVE ID
- CVE-2021-21554
- Assigner
- security_alert@emc.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-06-14T19:15:08
- Last Modified Date
- 2022-10-25T23:43:25
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:dell:poweredge_r640_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.9.4 | |
| cpe:2.3:h:dell:poweredge_r640:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:dell:poweredge_r740_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.9.4 | |
| cpe:2.3:h:dell:poweredge_r740:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:dell:poweredge_r740xd_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.9.4 | |
| cpe:2.3:h:dell:poweredge_r740xd:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:dell:poweredge_r940_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.9.4 | |
| cpe:2.3:h:dell:poweredge_r940:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:dell:poweredge_r840_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.9.4 | |
| cpe:2.3:h:dell:poweredge_r840:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:dell:poweredge_r940xa_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.9.4 | |
| cpe:2.3:h:dell:poweredge_r940xa:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:dell:poweredge_mx740c_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.9.4 | |
| cpe:2.3:h:dell:poweredge_mx740c:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:dell:poweredge_mx840c_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.9.4 | |
| cpe:2.3:h:dell:poweredge_mx840c:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:dell:precision_7920_firmware:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:dell:precision_7920:-:*:*:*:*:*:*:* | 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:H/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 6.7
- Base Severity
- MEDIUM
- Exploitability Score
- 0.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://www.dell.com/support/kbdoc/000187958 | Patch Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-21554 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21554 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:10:10 | Added to TrackCVE | |||
| 2022-12-05 04:24:25 | secure@dell.com | security_alert@emc.com | CVE Assigner | updated |
| 2022-12-05 04:24:25 | 2021-06-14T19:15Z | 2021-06-14T19:15:08 | CVE Published Date | updated |
| 2022-12-05 04:24:25 | 2022-10-25T23:43:25 | CVE Modified Date | updated | |
| 2022-12-05 04:24:25 | Analyzed | Vulnerability Status | updated |