CVE-2022-26873: fallo de gravedad alta en AMI Aptio
The stack buffer overflow vulnerability in PlatformInitAdvancedPreMem leads to arbitrary code execution during PEI phase.
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.2epss 0.4%
A potential attacker can execute an arbitrary code at the time of the PEI phase and influence the subsequent boot stages. This can lead to the mitigations bypassing, physical memory contents disclosure, discovery of any secrets from any Virtual Machines (VMs) and bypassing memory isolation and confidential computing boundaries. Additionally, an attacker can build a payload which can be injected into the SMRAM memory. This issue affects: Module name: PlatformInitAdvancedPreMem SHA256: 644044fdb8daea30a7820e0f5f88dbf5cd460af72fbf70418e9d2e47efed8d9b Module GUID: EEEE611D-F78F-4FB9-B868-55907F169280 This issue affects: AMI Aptio 5.x.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Productos afectados
AMI · AptioCVEs relacionadas — AMI Aptio
En el mismo producto, de las más peligrosas a las menos.
CVE-2022-40250HIGHStack overflow vulnerability in SMI handler on SmmSmbiosElog.EPSS 0.5%CVE-2022-40246HIGHArbitrary write vulnerability in SbPei module leads to arbitrary code execution during PEI phase.EPSS 0.5%CVE-2022-40261HIGHSMM memory corruption vulnerability in OverClockSmiHandler SMM driverEPSS 0.4%CVE-2022-40262HIGHThe arbitrary write vulnerability in S3Resume2Pei leads to arbitrary code execution during PEI phase.EPSS 0.3%