vulnerability

Oracle Linux: CVE-2021-3543: ELSA-2021-2168: kernel security and bug fix update (IMPORTANT)

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
Apr 29, 2021
Added
Jun 3, 2021
Modified
Dec 3, 2025

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.

Solution

oracle-linux-upgrade-kernel
Title
NEW

Explore Exposure Command

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