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CVE-2023-28746

Published: 12 March 2024

Information exposure through microarchitectural state after transient execution from some register files for some Intel(R) Atom(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

From the Ubuntu Security Team

It was discovered that some Intel® Atom® Processors did not properly clear register state when performing various operations. A local attacker could use this to obtain sensitive information via a transient execution attack.

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
intel-microcode
Launchpad, Ubuntu, Debian
bionic Needed

focal Needed

jammy Needed

mantic Needed

trusty Ignored
(trusty doesn't support early microcode loading at runtime)
upstream Needs triage

xenial Needed

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Changed
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N