openEuler update for linux-firmware

1) Improper Verification of Cryptographic Signature

EUVDB-ID: #VU103603

Risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-56161

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

Exploit availability: No

Description

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

The vulnerability exists due to improper verification of cryptographic signature in AMD CPU ROM microcode patch loader. A local privileged user can load a malicious CPU microcode and escalate privileges on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP4 - 24.03 LTS SP1

linux-firmware-ti-connectivity: before 20250311-1

linux-firmware-netronome: before 20250311-1

linux-firmware-mrvl: before 20250311-1

linux-firmware-mediatek: before 20250311-1

linux-firmware-libertas: before 20250311-1

linux-firmware-iwlwifi: before 20250311-1

linux-firmware-cypress: before 20250311-1

linux-firmware-ath: before 20250311-1

linux-firmware: before 20250311-1

CPE2.3

• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP4:*:*:*:*:*:*
• cpe:2.3:o:openeuler:openeuler:22.03:LTS SP3:*:*:*:*:*:*
• cpe:2.3:o:openeuler:openeuler:22.03:LTS SP4:*:*:*:*:*:*
• cpe:2.3:a:openeuler:linux-firmware-ti-connectivity:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:linux-firmware-netronome:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:linux-firmware-mrvl:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:linux-firmware-mediatek:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:linux-firmware-libertas:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:linux-firmware-iwlwifi:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:linux-firmware-cypress:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:linux-firmware-ath:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:linux-firmware:*:*:*:*:*:openeuler:*:*

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2025-1307

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.