7.2
CVE-2021-3543
- EPSS 0.1%
- Published 01.06.2021 14:15:10
- Last modified 21.11.2024 06:21:48
- Source secalert@redhat.com
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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.
Data is provided by the National Vulnerability Database (NVD)
Nitro Enclaves Project ≫ Nitro Enclaves Version < 5.10.0
Redhat ≫ Enterprise Linux Version8.0
Fedoraproject ≫ Fedora Version34
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
| Type | Source | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.1% | 0.246 |
| Source | Base Score | Exploit Score | Impact Score | Vector string |
|---|---|---|---|---|
| nvd@nist.gov | 6.7 | 0.8 | 5.9 |
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
|
| nvd@nist.gov | 7.2 | 3.9 | 10 |
AV:L/AC:L/Au:N/C:C/I:C/A:C
|
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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.