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CVE-2020-24511

Published: 8 June 2021

Improper isolation of shared resources in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

From the Ubuntu security team

Joseph Nuzman discovered that some Intel processors may not properly apply EIBRS mitigations (originally developed for CVE-2017-5715) and hence may allow unauthorized memory reads via sidechannel attacks. A local attacker could use this to expose sensitive information, including kernel memory.

Notes

AuthorNote
sbeattie
INTEL-TA-00464
no kernel component to this MCU update
Priority

Medium

CVSS 3 base score: 5.6

Status

Package Release Status
intel-microcode
Launchpad, Ubuntu, Debian
bionic
Released (3.20210608.0ubuntu0.18.04.1)
focal
Released (3.20210608.0ubuntu0.20.04.1)
groovy
Released (3.20210608.0ubuntu0.20.10.1)
hirsute
Released (3.20210608.0ubuntu0.21.04.1)
impish
Released (3.20210608.0ubuntu1)
jammy
Released (3.20210608.0ubuntu1)
precise Does not exist

trusty
Released (3.20210608.0ubuntu0.14.04.1+esm1)
upstream Needs triage

xenial
Released (3.20210608.0ubuntu0.16.04.1+esm1)