CVE-2023-21102

2023-06-1301:35:19

redhat.com

access.redhat.com

linux kernel

efi-rt-wrapper.s

shadow stack protection

logic error

local escalation of privilege

red hat product security

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

Percentile

5.1%

JSON

A vulnerability was found in the __efi_rt_asm_wrapper of the efi-rt-wrapper.S in the Linux kernel, where there is a possible bypass of shadow stack protection due to a logic error in the code. This flaw could lead to local escalation of privilege without additional execution privileges needed.

Mitigation

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.