CVE Vulnerability

CVE-2018-1992

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.

6.9 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.4 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

6.4 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.5 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.ibm.com/support/docview.wss?uid=ibm10868992 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/154345 VDB Entry Vendor Advisory
Configurations

Configuration 1
Information

Published : 2019-03-21 04:00

Updated : 2019-10-09 11:39

NVD link : CVE-2018-1992

Mitre link : CVE-2018-1992

Products Affected
No products.
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer