CVE & CISA-KEV Catalog

CVE-2018-1992

MEDIUM
6.4
CVSS v3
NVD

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.

CWE-119Buffer Overflow

How to fix

Remediation Available
power system ac922 \(8335-gtg\) firmwareNVD
Affected:< op910.30Fixed in:op910.30CVE-2018-1992derived from NVD
power system ac922 \(8335-gth\) firmwareNVD
Affected:< op920.10Fixed in:op920.10CVE-2018-1992derived from NVD
power system ac922 \(8335-gtx\) firmwareNVD
Affected:< op920.10Fixed in:op920.10CVE-2018-1992derived from NVD
power system h922 \(9223-22h\) firmwareNVD
Affected:< fw910.10Fixed in:fw910.10CVE-2018-1992derived from NVD
power system h924 \(9223-42h\) firmwareNVD
Affected:< fw910.10Fixed in:fw910.10CVE-2018-1992derived from NVD
power system l922 \(9008-22l\) firmwareNVD
Affected:< fw910.10Fixed in:fw910.10CVE-2018-1992derived from NVD
power system lc921 \(9006-12p\) firmwareNVD
Affected:< op920.10Fixed in:op920.10CVE-2018-1992derived from NVD
power system lc922 \(9006-22p\) firmwareNVD
Affected:< op920.10Fixed in:op920.10CVE-2018-1992derived from NVD
power system s914 \(9009-41a\) firmwareNVD
Affected:< fw910.10Fixed in:fw910.10CVE-2018-1992derived from NVD
power system s922 \(9009-22a\) firmwareNVD
Affected:< fw910.10Fixed in:fw910.10CVE-2018-1992derived from NVD
power system s924 \(9009-42a\) firmwareNVD
Affected:< fw910.10Fixed in:fw910.10CVE-2018-1992derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityHigh
Privileges RequiredHigh
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

0.35%probability of exploitation in 30 days
27thpercentile

Low risk: more likely to be exploited than 27% of all known CVEs.

References

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-4966Critical9.4100%KEV + RansomFix
CVE-2017-11882High7.8100%KEV + Ransom-
CVE-2020-0796Critical10.0100%KEV + Ransom-
CVE-2008-4250Critical9.899%KEV-
CVE-2017-15944Critical9.898%KEVFix
CVE-2015-0014High10.097%--
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.