CVE-2018-9085

Missing System x Flash Memory Write Protection Lock Bit

Description

A write protection lock bit was left unset after boot on an older generation of Lenovo and IBM System x servers, potentially allowing an attacker with administrator access to modify the subset of flash memory containing Intel Server Platform Services (SPS) and the system Flash Descriptors.

Remediation

Solution:

  • Update UEFI firmware

Category

4.9
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.14%
Vendor Advisory lenovo.com
Affected: Lenovo System x UEFI
Affected: IBM System x UEFI
Published at:
Updated at:

References

Link Tags
https://support.lenovo.com/us/en/solutions/LEN-24477 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-9085?
CVE-2018-9085 has been scored as a medium severity vulnerability.
How to fix CVE-2018-9085?
To fix CVE-2018-9085: Update UEFI firmware
Is CVE-2018-9085 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-9085 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-9085?
CVE-2018-9085 affects Lenovo System x UEFI, IBM System x UEFI.
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