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CVE-2020-0549

Publication date 27 January 2020

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

Cleanup errors in some data cache evictions for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

From the Ubuntu Security Team

It was discovered that on some Intel processors, data from the most recently evicted modified L1 data cache (L1D) line may be propagated into an unused (invalid) L1D fill buffer. A local attacker could possibly use this to expose sensitive information.

Read the notes from the security team

Status

Package Ubuntu Release Status
intel-microcode 20.10 groovy
Fixed 3.20200609.0ubuntu0.20.04.0
20.04 LTS focal
Fixed 3.20200609.0ubuntu0.20.04.0
19.10 eoan
Fixed 3.20200609.0ubuntu0.19.10.0
19.04 disco Ignored end of life
18.04 LTS bionic
Fixed 3.20200609.0ubuntu0.18.04.0
16.04 LTS xenial
Fixed 3.20200609.0ubuntu0.16.04.0
14.04 LTS trusty

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Notes

tyhicks

This issue only affects Intel processors

Severity score breakdown

Parameter Value
Base score 5.5 · Medium
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N