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CVE-2022-41804

Published: 8 August 2023

Unauthorized error injection in Intel(R) SGX or Intel(R) TDX for some Intel(R) Xeon(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.

From the Ubuntu Security Team

It was discovered that some Intel(R) Xeon(R) Processors did not properly restrict error injection for Intel(R) SGX or Intel(R) TDX. A local privileged user could use this to further escalate their privileges.

Priority

Medium

Cvss 3 Severity Score

6.7

Score breakdown

Status

Package Release Status
intel-microcode
Launchpad, Ubuntu, Debian
trusty Needs triage

upstream Needs triage

bionic
Released (3.20230808.0ubuntu0.18.04.1+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
focal
Released (3.20230808.0ubuntu0.20.04.1)
jammy
Released (3.20230808.0ubuntu0.22.04.1)
lunar
Released (3.20230808.0ubuntu1)
xenial
Released (3.20230808.0ubuntu0.16.04.1+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic
Released (3.20230808.1)

Severity score breakdown

Parameter Value
Base score 6.7
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H