CVE & CISA-KEV Catalog

CVE-2018-1108

MEDIUMEPSS 76th pctl

5.9

CVSS v3

Description

kernel drivers before version 4.17-rc1 are vulnerable to a weakness in the Linux kernel's implementation of random seed data. Programs, early in the boot sequence, could use the data allocated for the seed before it was sufficiently generated.

How to fix

Remediation Available

kernelAmazon

Fixed in:0:4.14.42-61.37.amzn2

kernel-debuginfoAmazon

Fixed in:0:4.14.42-61.37.amzn2

kernel-debuginfo-common-x86_64Amazon

Fixed in:0:4.14.42-61.37.amzn2

kernel-develAmazon

Fixed in:0:4.14.42-61.37.amzn2

kernel-headersAmazon

Fixed in:0:4.14.42-61.37.amzn2

kernel-toolsAmazon

Fixed in:0:4.14.42-61.37.amzn2

kernel-tools-debuginfoAmazon

Fixed in:0:4.14.42-61.37.amzn2

kernel-tools-develAmazon

Fixed in:0:4.14.42-61.37.amzn2

perfAmazon

Fixed in:0:4.14.42-61.37.amzn2

perf-debuginfoAmazon

Fixed in:0:4.14.42-61.37.amzn2

python-perfAmazon

Fixed in:0:4.14.42-61.37.amzn2

python-perf-debuginfoAmazon

Fixed in:0:4.14.42-61.37.amzn2

linuxDebian

Fixed in:4.16.5-1CVE-2018-1108

Fixed in:4.16.5-1CVE-2018-1108

Fixed in:4.16.5-1CVE-2018-1108

linuxUbuntu

Fixed in:4.15.0-33.36USN-3752-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

linux-awsUbuntu

Fixed in:4.15.0-1020.20USN-3752-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

linux-azureUbuntu

Fixed in:4.15.0-1022.22~16.04.1USN-3752-3

This Ubuntu release reached end-of-life on 2021-04-02.

Fixed in:4.15.0-1022.23USN-3752-3

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

linux-gcpUbuntu

Fixed in:4.15.0-1018.19~16.04.2USN-3752-3

This Ubuntu release reached end-of-life on 2021-04-02.

Fixed in:4.15.0-1018.19USN-3752-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

linux-hweUbuntu

Fixed in:4.15.0-33.36~16.04.1USN-3752-2

This Ubuntu release reached end-of-life on 2021-04-02.

linux-image-4.15.0-1020-awsUbuntu

Fixed in:4.15.0-1020.20USN-3752-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

linux-image-4.15.0-1020-kvmUbuntu

Fixed in:4.15.0-1020.20USN-3752-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

linux-image-4.15.0-1021-raspi2Ubuntu

Fixed in:4.15.0-1021.23USN-3752-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

linux-image-4.15.0-33-genericUbuntu

Fixed in:4.15.0-33.36~16.04.1USN-3752-2

This Ubuntu release reached end-of-life on 2021-04-02.

Fixed in:4.15.0-33.36USN-3752-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

linux-image-4.15.0-33-generic-lpaeUbuntu

Fixed in:4.15.0-33.36~16.04.1USN-3752-2

This Ubuntu release reached end-of-life on 2021-04-02.

Fixed in:4.15.0-33.36USN-3752-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

linux-image-4.15.0-33-lowlatencyUbuntu

Fixed in:4.15.0-33.36~16.04.1USN-3752-2

This Ubuntu release reached end-of-life on 2021-04-02.

Fixed in:4.15.0-33.36USN-3752-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

linux-image-4.15.0-33-snapdragonUbuntu

Fixed in:4.15.0-33.36USN-3752-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

linux-kvmUbuntu

Fixed in:4.15.0-1020.20USN-3752-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

linux-oemUbuntu

Fixed in:4.15.0-1017.20USN-3752-3

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

linux-raspi2Ubuntu

Fixed in:4.15.0-1021.23USN-3752-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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 VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploit Intelligence

1.73%probability of exploitation in 30 days

76thpercentile

Elevated risk: more likely to be exploited than 76% of all known CVEs.

References

Third-Party Advisory9

Related Vulnerabilities

Other CWE-330 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-5420	Critical	9.8	92%	-	Fix
CVE-2021-34646	Critical	9.8	51%	-	-
CVE-2008-0087	High	7.5	32%	-	-
CVE-2017-6026	Critical	9.1	32%	-	-
CVE-2018-17888	Critical	9.8	30%	-	-
CVE-2020-11901	Critical	9.0	21%	-	Fix

Common questions

How do I fix CVE-2018-1108?

Published advisories record a fix for 28 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2018-1108 being actively exploited?

Not that we know of. CVE-2018-1108 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.7% is the estimated probability that it will be exploited in the next 30 days. That is higher than 76% of all scored CVEs.

How severe is CVE-2018-1108?

CVE-2018-1108 has a CVSS v3 base score of 5.9, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2018-1108 affect?

Published advisories record a fix for kernel (Amazon), kernel-debuginfo (Amazon), kernel-debuginfo-common-x86_64 (Amazon), kernel-devel (Amazon), and 24 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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 2026-06-17.