USN-7033-1: Intel Microcode vulnerabilities

Releases

• Ubuntu 24.04 LTS
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages

• intel-microcode - Processor microcode for Intel CPUs

Details

It was discovered that some Intel(R) Processors did not properly restrict
access to the Running Average Power Limit (RAPL) interface. This may allow
a local privileged attacker to obtain sensitive information.
(CVE-2024-23984)

It was discovered that some Intel(R) Processors did not properly implement
finite state machines (FSMs) in hardware logic. This may allow a local
privileged attacker to cause a denial of service (system crash).
(CVE-2024-24968)

Update instructions

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

Ubuntu 24.04

• intel-microcode - 3.20240910.0ubuntu0.24.04.1

Ubuntu 22.04

• intel-microcode - 3.20240910.0ubuntu0.22.04.1

Ubuntu 20.04

• intel-microcode - 3.20240910.0ubuntu0.20.04.1

Ubuntu 18.04

• intel-microcode - 3.20240910.0ubuntu0.18.04.1+esm1
  Available with Ubuntu Pro

Ubuntu 16.04

• intel-microcode - 3.20240910.0ubuntu0.16.04.1+esm1
  Available with Ubuntu Pro

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

References

• CVE-2024-24968
• CVE-2024-23984