6.4
MEDIUM
CVE-2018-1992
IBM Power 9 Bootloader Buffer Overflow Vulnerability
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.

INFO

Published Date :

March 21, 2019, 4 p.m.

Last Modified :

Oct. 9, 2019, 11:39 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

0.5
Affected Products

The following products are affected by CVE-2018-1992 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Ibm power_system_s922_\(9009-22a\)_firmware
2 Ibm power_system_h922_\(9223-22h\)_firmware
3 Ibm power_system_s914_\(9009-41a\)_firmware
4 Ibm power_system_s924_\(9009-42a\)_firmware
5 Ibm power_system_h924_\(9223-42h\)_firmware
6 Ibm power_system_l922_\(9008-22l\)_firmware
7 Ibm power_system_ac922_\(8335-gtg\)_firmware
8 Ibm power_system_ac922_\(8335-gth\)_firmware
9 Ibm power_system_ac922_\(8335-gtx\)_firmware
10 Ibm power_system_lc921_\(9006-12p\)_firmware
11 Ibm power_system_lc922_\(9006-22p\)_firmware
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-1992.

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

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-1992 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-1992 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CVSS V3 IBM Corporation AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
  • Initial Analysis by [email protected]

    Apr. 03, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:L/AC:M/Au:N/C:C/I:C/A:C)
    Added CVSS V3 AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://www.ibm.com/support/docview.wss?uid=ibm10868992 No Types Assigned https://www.ibm.com/support/docview.wss?uid=ibm10868992 Vendor Advisory
    Changed Reference Type https://exchange.xforce.ibmcloud.com/vulnerabilities/154345 No Types Assigned https://exchange.xforce.ibmcloud.com/vulnerabilities/154345 VDB Entry, Vendor Advisory
    Added CWE CWE-119
    Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_s922_\(9009-22a\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) fw910.10 OR cpe:2.3:h:ibm:power_system_s922_\(9009-22a\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_h922_\(9223-22h\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) fw910.10 OR cpe:2.3:h:ibm:power_system_h922_\(9223-22h\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_s914_\(9009-41a\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) fw910.10 OR cpe:2.3:h:ibm:power_system_s914_\(9009-41a\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_s924_\(9009-42a\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) fw910.10 OR cpe:2.3:h:ibm:power_system_s924_\(9009-42a\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_h924_\(9223-42h\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) fw910.10 OR cpe:2.3:h:ibm:power_system_h924_\(9223-42h\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_l922_\(9008-22l\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) fw910.10 OR cpe:2.3:h:ibm:power_system_l922_\(9008-22l\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_ac922_\(8335-gtg\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) op910.30 OR cpe:2.3:h:ibm:power_system_ac922_\(8335-gtg\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_ac922_\(8335-gth\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) op920.10 OR cpe:2.3:h:ibm:power_system_ac922_\(8335-gth\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_ac922_\(8335-gtx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) op920.10 OR cpe:2.3:h:ibm:power_system_ac922_\(8335-gtx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_lc921_\(9006-12p\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) op920.10 OR cpe:2.3:h:ibm:power_system_lc921_\(9006-12p\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_lc922_\(9006-22p\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) op920.10 OR cpe:2.3:h:ibm:power_system_lc922_\(9006-22p\):-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} 0.00%

score

0.10264

percentile

CVSS30 - Vulnerability Scoring System
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