CVEvulnerability

CVE-2018-1992

6.4 MEDIUM Published 2019-03-21 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2019-03-21
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
6.4 MEDIUM — CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 3.0 ([email protected])
6.4 MEDIUM — CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.9 MEDIUM — AV:L/AC:M/Au:N/C:C/I:C/A:C
Weaknesses
CWE-119

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.

Affected configurations

• ibm power system s922 \(9009-22a\) firmware (< fw910.10) • ibm power system h922 \(9223-22h\) firmware (< fw910.10) • ibm power system s914 \(9009-41a\) firmware (< fw910.10) • ibm power system s924 \(9009-42a\) firmware (< fw910.10) • ibm power system h924 \(9223-42h\) firmware (< fw910.10) • ibm power system l922 \(9008-22l\) firmware (< fw910.10) • ibm power system ac922 \(8335-gtg\) firmware (< op910.30) • ibm power system ac922 \(8335-gth\) firmware (< op920.10) • ibm power system ac922 \(8335-gtx\) firmware (< op920.10) • ibm power system lc921 \(9006-12p\) firmware (< op920.10) • ibm power system lc922 \(9006-22p\) firmware (< op920.10)

Related

Weakness · CWE (1)

  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness

References