CVE-2018-5407

Name: CVE-2018-5407
Creator: NVD / NIST
Published: 2018-11-15T21:29:00.233+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.7/10EPSS 3.42%

Last modified Jun 17, 2026

CVE-2018-5407 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. Simultaneous Multi-threading (SMT) in processors can enable local users to exploit software vulnerable to timing attacks via a side-channel timing attack on 'port contention'.. EPSS estimates a 3.42% chance of exploitation in the next 30 days.

Description

Simultaneous Multi-threading (SMT) in processors can enable local users to exploit software vulnerable to timing attacks via a side-channel timing attack on 'port contention'.

Metrics

CVSS 3.1

4.7/10

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

EPSS Probability

3.42%

87.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	18.10
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Nodejs	Node.Js	< 6.14.4
Nodejs	Node.Js	>= 8.0.0, < 8.11.4
Nodejs	Node.Js	>= 10.0.0, < 10.9.0
Openssl	Openssl	>= 1.0.2, < 1.0.2q
Openssl	Openssl	>= 1.1.0, < 1.1.0i
Tenable	Nessus	< 8.1.1
Oracle	Api Gateway	11.1.2.4.0
Oracle	Application Server	0.9.8
Oracle	Application Server	1.0.0
Oracle	Application Server	1.0.1
Oracle	Enterprise Manager Base Platform	12.1.0.5.0
Oracle	Enterprise Manager Base Platform	13.2.0.0.0
Oracle	Enterprise Manager Base Platform	13.3.0.0.0
Oracle	Enterprise Manager Ops Center	12.3.3
Oracle	Mysql Enterprise Backup	<= 3.12.3
Oracle	Mysql Enterprise Backup	>= 3.12.4, <= 4.1.2
Oracle	Peoplesoft Enterprise Peopletools	8.55
Oracle	Peoplesoft Enterprise Peopletools	8.56
Oracle	Peoplesoft Enterprise Peopletools	8.57
Oracle	Primavera P6 Enterprise Project Portfolio Management	>= 17.7, <= 17.12
Oracle	Primavera P6 Enterprise Project Portfolio Management	8.4
Oracle	Primavera P6 Enterprise Project Portfolio Management	15.1
Oracle	Primavera P6 Enterprise Project Portfolio Management	15.2
Oracle	Primavera P6 Enterprise Project Portfolio Management	16.1
Oracle	Primavera P6 Enterprise Project Portfolio Management	16.2
Oracle	Primavera P6 Enterprise Project Portfolio Management	18.8
Oracle	Tuxedo	12.1.1.0.0
Oracle	Vm Virtualbox	< 6.0.0
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Server	7.6
Redhat	Enterprise Linux Server Aus	7.6
Redhat	Enterprise Linux Server Eus	7.6
Redhat	Enterprise Linux Server Tus	7.6
Redhat	Enterprise Linux Workstation	7.0

References

http://www.securityfocus.com/bid/105897Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2019:0483Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0651Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0652Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2125Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3929Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3931Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3932Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3933Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3935Third Party Advisory
https://eprint.iacr.org/2018/1060.pdfTechnical Description, Third Party Advisory
https://github.com/bbbrumley/portsmashExploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00024.htmlMailing List, Third Party Advisory
https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/Third Party Advisory
https://security.gentoo.org/glsa/201903-10Third Party Advisory
https://security.netapp.com/advisory/ntap-20181126-0001/Third Party Advisory
https://support.f5.com/csp/article/K49711130?utm_source=f5support&amp%3Butm_medium=RSS
https://usn.ubuntu.com/3840-1/Third Party Advisory
https://www.debian.org/security/2018/dsa-4348Third Party Advisory
https://www.debian.org/security/2018/dsa-4355Third Party Advisory
https://www.exploit-db.com/exploits/45785/Exploit, Third Party Advisory, VDB Entry
https://www.oracle.com/security-alerts/cpuapr2020.htmlPatch, Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2020.htmlPatch, Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlPatch, Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.htmlPatch, Vendor Advisory
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.htmlPatch, Third Party Advisory
https://www.tenable.com/security/tns-2018-16Third Party Advisory
https://www.tenable.com/security/tns-2018-17Third Party Advisory
http://www.securityfocus.com/bid/105897Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2019:0483Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0651Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0652Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2125Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3929Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3931Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3932Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3933Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3935Third Party Advisory
https://eprint.iacr.org/2018/1060.pdfTechnical Description, Third Party Advisory
https://github.com/bbbrumley/portsmashExploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00024.htmlMailing List, Third Party Advisory
https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/Third Party Advisory
https://security.gentoo.org/glsa/201903-10Third Party Advisory
https://security.netapp.com/advisory/ntap-20181126-0001/Third Party Advisory
https://support.f5.com/csp/article/K49711130?utm_source=f5support&amp%3Butm_medium=RSS
https://usn.ubuntu.com/3840-1/Third Party Advisory
https://www.debian.org/security/2018/dsa-4348Third Party Advisory
https://www.debian.org/security/2018/dsa-4355Third Party Advisory
https://www.exploit-db.com/exploits/45785/Exploit, Third Party Advisory, VDB Entry
https://www.oracle.com/security-alerts/cpuapr2020.htmlPatch, Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2020.htmlPatch, Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlPatch, Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.htmlPatch, Vendor Advisory
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.htmlPatch, Third Party Advisory
https://www.tenable.com/security/tns-2018-16Third Party Advisory
https://www.tenable.com/security/tns-2018-17Third Party Advisory

Timeline

Published: Nov 15, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-5407?

Simultaneous Multi-threading (SMT) in processors can enable local users to exploit software vulnerable to timing attacks via a side-channel timing attack on 'port contention'.

How severe is CVE-2018-5407?

CVE-2018-5407 has a CVSS score of 4.7/10 (MEDIUM severity). The EPSS model estimates a 3.42% probability of exploitation in the next 30 days.

How do I fix CVE-2018-5407?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-5407?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST