CVE-2018-1992

 

Published at: - 21-03-2019 05:00

Last modified: - 05-10-2022 03:56

Total changes: - 2

Description

The IBM Power 9 OP910, OP920, and FW910 boot firmware's bootloader is responsible for loading and validating the initial boot firmware image that drives the rest of the system's hardware initialization. The bootloader firmware contains a buffer overflow vulnerability such that, if an attacker were able to replace the initial boot firmware image with a very carefully crafted and sufficiently large, malicious replacement, it could cause the bootloader, during the load of that image, to overwrite its own instruction memory and circumvent secure boot protections, install trojans, etc. IBM X-Force ID: 154345.

Common Vulnerability Scoring System (CVSS)

CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://www.ibm.com/support/docview.wss?uid=ibm10868992
• ibm-power9-cve20181992-code-exec (154345)-VDB Entry, Vendor Advisory

 

Keywords

NVD

 

CVE-2018-1992

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures