CVE-2021-21554
6.7
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Exploitability: 0.8 / Impact: 5.9
Source: NVD
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.
Affected (9)
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| Before 2.9.4 |
| Running on/with | Platform Versions |
|---|---|
Dell Poweredge R640 | All versions |
Configuration B
| Vulnerable Software | Affected Versions |
|---|---|
| Before 2.9.4 |
| Running on/with | Platform Versions |
|---|---|
Dell Poweredge R740 | All versions |
Configuration C
| Vulnerable Software | Affected Versions |
|---|---|
| Before 2.9.4 |
| Running on/with | Platform Versions |
|---|---|
Dell Poweredge R740xd | All versions |
Configuration D
| Vulnerable Software | Affected Versions |
|---|---|
| Before 2.9.4 |
| Running on/with | Platform Versions |
|---|---|
Dell Poweredge R940 | All versions |
Configuration E
| Vulnerable Software | Affected Versions |
|---|---|
| Before 2.9.4 |
| Running on/with | Platform Versions |
|---|---|
Dell Poweredge R840 | All versions |
Configuration F
| Vulnerable Software | Affected Versions |
|---|---|
| Before 2.9.4 |
| Running on/with | Platform Versions |
|---|---|
Dell Poweredge R940xa | All versions |
Configuration G
| Vulnerable Software | Affected Versions |
|---|---|
| Before 2.9.4 |
| Running on/with | Platform Versions |
|---|---|
Dell Poweredge Mx740c | All versions |
Configuration H
| Vulnerable Software | Affected Versions |
|---|---|
| Before 2.9.4 |
| Running on/with | Platform Versions |
|---|---|
Dell Poweredge Mx840c | All versions |
Configuration I
| Vulnerable Software | Affected Versions |
|---|---|
| All versions |
| Running on/with | Platform Versions |
|---|---|
Dell Precision 7920 | All versions |
Related CWEs
CWE-122
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
CWE-787
Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.
References (2)
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Timeline
No history available yet.