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CVE-2020-24489

Publication date 8 June 2021

Last updated 24 July 2024

Ubuntu priority

High

Why this priority?

Cvss 3 Severity Score

8.8 · High

Score breakdown

Incomplete cleanup in some Intel(R) VT-d products may allow an authenticated user to potentially enable escalation of privilege via local access.

From the Ubuntu Security Team

It was discovered that some Intel processors may not properly invalidate cache entries used by Intel Virtualization Technology for Directed I/O (VT-d). This may allow a local user to perform a privilege escalation attack.

Read the notes from the security team

Status

Package Ubuntu Release Status
intel-microcode 22.04 LTS jammy
Fixed 3.20210608.0ubuntu1
21.10 impish
Fixed 3.20210608.0ubuntu1
21.04 hirsute
Fixed 3.20210608.0ubuntu0.21.04.1
20.10 groovy
Fixed 3.20210608.0ubuntu0.20.10.1
20.04 LTS focal
Fixed 3.20210608.0ubuntu0.20.04.1
18.04 LTS bionic
Fixed 3.20210608.0ubuntu0.18.04.1
16.04 LTS xenial
14.04 LTS trusty

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Notes

sbeattie

INTEL-TA-00442 does not appear to be kernel/qemu aspect to this issue

Severity score breakdown

Parameter Value
Base score 8.8 · High
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H