CVE-2021-3543
6.7 MEDIUMA flaw null pointer dereference in the Nitro Enclaves kernel driver was found in the way that Enclaves VMs forces closures on the enclave...
Published: 2021-06-01 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 6.7 MEDIUM
- Vector
- CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-416, CWE-476
Affected products
| Vendor | Product |
|---|---|
| fedoraproject | enterprise_linux, fedora, nitro_enclaves |
| nitro_enclaves_project | enterprise_linux, fedora, nitro_enclaves |
| redhat | enterprise_linux, fedora, nitro_enclaves |
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-3543
- [Other]https://bugzilla.redhat.com/show_bug.cgi?id=1953022
- [Other]https://lore.kernel.org/lkml/20210429165941.27020-2-andraprs%40amazon.com/
- [Other]https://bugzilla.redhat.com/show_bug.cgi?id=1953022
- [Other]https://lore.kernel.org/lkml/20210429165941.27020-2-andraprs%40amazon.com/
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