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Ubuntu 24.04 LTS USN-7269-2 critical: Intel Microcode DoS

ubuntu
Calendar Grey February 24, 2025
Dist Ubuntu Esm H88
Intel microcode enhancements for Ubuntu 24.04 LTS targeting various security vulnerabilities and denial of service threats.
Several security issues were fixed in Intel Microcode.

Summary

Several security issues were fixed in Intel Microcode.

Software Description:

- intel-microcode: Processor microcode for Intel CPUs

Details:

USN-7269-1 fixed vulnerabilities in Intel Microcode. This update provides

the corresponding updates for Ubuntu 24.04 LTS.

Original advisory details:

Ke Sun, Paul Grosen and Alyssa Milburn discovered that some Intel®

Processors did not properly implement Finite State Machines (FSMs) in

Hardware Logic. A local privileged attacker could use this issue to cause

a denial of service. (CVE-2024-31068)

It was discovered that some Intel® Processors with Intel® SGX did not

properly restrict access to the EDECCSSA user leaf function. A local

authenticated attacker could use this issue to cause a denial of

service. (CVE-2024-36293)

Ke Sun, Alyssa Milburn, Benoit Morgan, and Erik Bjorge discovered that the

UEFI firmware for some Intel® processors did not properly restrict

access. An authenticated local attacke...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service security issue security fix ubuntu linux updates system reboot intel microcode processor patch

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 24.04 LTS
  intel-microcode                 3.20250211.0ubuntu0.24.04.1

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

https://ubuntu.com/security/notices/USN-7269-2

https://ubuntu.com/security/notices/USN-7269-1

CVE-2024-31068, CVE-2024-36293, CVE-2024-39279

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7269-2

Topics%20covered

Topics Covered

security advisory denial of service security issue security fix ubuntu linux updates system reboot intel microcode processor patch

Package Information

https://launchpad.net/ubuntu/+source/intel-microcode/3.20250211.0ubuntu0.24.04.1

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