Intel Microcode vulnerabilities

Releases

• Ubuntu 23.04
• 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

Daniel Moghimi discovered that some Intel® Processors did not properly clear
microarchitectural state after speculative execution of various instructions. A
local unprivileged user could use this to obtain to sensitive
information. (CVE-2022-40982)

It was discovered that some Intel® Xeon® Processors did not properly
restrict error injection for Intel® SGX or Intel® TDX. A local privileged
user could use this to further escalate their privileges. (CVE-2022-41804)

It was discovered that some 3rd Generation Intel® Xeon® Scalable processors
did not properly restrict access in some situations. A local privileged attacker
could use this to obtain sensitive information. (CVE-2023-23908)