CVE-2021-33117

Publication date 12 May 2022

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

Improper access control for some 3rd Generation Intel(R) Xeon(R) Scalable Processors before BIOS version MR7, may allow a local attacker to potentially enable information disclosure via local access.

From the Ubuntu Security Team

It was discovered that some Intel processors did not properly restrict access in some situations. This may allow a local attacker to obtain sensitive information.

Status

Package Ubuntu Release Status
intel-microcode 22.10 kinetic
Fixed 3.20220207.1ubuntu1
22.04 LTS jammy
Fixed 3.20220510.0ubuntu0.22.04.1
21.10 impish
Fixed 3.20220510.0ubuntu0.21.10.1
20.04 LTS focal
Fixed 3.20220510.0ubuntu0.20.04.1
18.04 LTS bionic
Fixed 3.20220510.0ubuntu0.18.04.1
16.04 LTS xenial
14.04 LTS trusty Ignored end of ESM support, was ignored [early microcode loading not allowed]

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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

References

Related Ubuntu Security Notices (USN)

    • USN-5486-1
    • Intel Microcode vulnerabilities
    • 20 June 2022
    • USN-5535-1
    • Intel Microcode vulnerabilities
    • 28 July 2022

Other references