CVE-2021-3543
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
A flaw null pointer dereference in the Nitro Enclaves kernel driver was found in the way that Enclaves VMs forces closures on the enclave file descriptor. A local user of a host machine could use this flaw to crash the system or escalate their privileges on the system.
Affected (3)
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| Before 5.10.0 |
Configuration B
| Vulnerable Software | Affected Versions |
|---|---|
| Version 8.0 |
Configuration C
| Vulnerable Software | Affected Versions |
|---|---|
| Version 34 |
Related CWEs
CWE-416
Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
CWE-476
NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.
References (4)
Source: secalert@redhat.com
Issue TrackingThird Party Advisory
Source: secalert@redhat.com
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Timeline
No history available yet.