SB2024122746 - openEuler update for microcode_ctl

Description

This security bulletin contains information about 2 vulnerabilities.

1) Incorrect default permissions (CVE-ID: CVE-2024-21820)

CWE-ID: CWE-276 - Incorrect Default Permissions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to incorrect default permissions in some Intel Xeon processor memory controller configurations when using Intel SGX. A local user escalate privileges on the system.

2) Improper finite state machines in hardware logic (CVE-ID: CVE-2024-21853)

CWE-ID: CWE-1245 - Improper Finite State Machines (FSMs) in Hardware Logic

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to an error in hardware logic. A local unprivileged user can perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-2524