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CVE-2023-23908

Published: 8 August 2023

Improper access control in some 3rd Generation Intel(R) Xeon(R) Scalable processors may allow a privileged user to potentially enable information disclosure via local access.

From the Ubuntu Security Team

It was discovered that some 3rd Generation Intel(R) Xeon(R) Scalable processors did not properly restrict access in some situations. A local privileged attacker could use this to obtain sensitive information.

Priority

Medium

Cvss 3 Severity Score

4.4

Score breakdown

Status

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

upstream
Released
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 4.4
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N