CVE-2018-5407

4.7 medium exploit SSVC exploitation: none Modified

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'.

Fix

Public exploits 1

Intel (Skylake / Kaby Lake) - 'PortSmash' CPU SMT Side-Channel (local · hardware) Exploit-DB · 2018-11-02

Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.

Patch, vendor advisory and mitigation references on NVD 10

https://www.oracle.com/security-alerts/cpuapr2020.html Patch, Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2020.html Patch, Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html Patch, Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html Patch, Vendor Advisory
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html Patch, Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2020.html Patch, Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2020.html Patch, Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html Patch, Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html Patch, Vendor Advisory
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html Patch, Third Party Advisory

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

2026-10-15 00:45First seenCVSS 4.7 · canonical, debian, nodejsNVD modified 2026-10-08 22:16

Affected (CPE criteria) 37

cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
cpe:2.3:a:tenable:nessus:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:api_gateway:11.1.2.4.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:application_server:0.9.8:*:*:*:*:*:*:*
cpe:2.3:a:oracle:application_server:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:application_server:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:enterprise_manager_base_platform:12.1.0.5.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:enterprise_manager_base_platform:13.2.0.0.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:enterprise_manager_base_platform:13.3.0.0.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:enterprise_manager_ops_center:12.3.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql_enterprise_backup:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.55:*:*:*:*:*:*:*
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.56:*:*:*:*:*:*:*
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:8.4:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:15.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:15.2:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:16.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:16.2:*:*:*:*:*:*:*
cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:18.8:*:*:*:*:*:*:*
cpe:2.3:a:oracle:tuxedo:12.1.1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:vm_virtualbox:*:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*

References 56

http://www.securityfocus.com/bid/105897 Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2019:0483 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0651 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0652 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2125 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3929 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3931 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3932 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3933 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3935 Third Party Advisory
https://eprint.iacr.org/2018/1060.pdf Technical Description, Third Party Advisory
https://github.com/bbbrumley/portsmash Exploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00024.html Mailing List, Third Party Advisory
https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/ Third Party Advisory
https://security.gentoo.org/glsa/201903-10 Third 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-4348 Third Party Advisory
https://www.debian.org/security/2018/dsa-4355 Third Party Advisory
https://www.exploit-db.com/exploits/45785/ Exploit, Third Party Advisory, VDB Entry
https://www.oracle.com/security-alerts/cpuapr2020.html Patch, Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2020.html Patch, Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html Patch, Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html Patch, Vendor Advisory
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html Patch, Third Party Advisory
https://www.tenable.com/security/tns-2018-16 Third Party Advisory
https://www.tenable.com/security/tns-2018-17 Third Party Advisory
http://www.securityfocus.com/bid/105897 Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2019:0483 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0651 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0652 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2125 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3929 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3931 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3932 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3933 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3935 Third Party Advisory
https://eprint.iacr.org/2018/1060.pdf Technical Description, Third Party Advisory
https://github.com/bbbrumley/portsmash Exploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00024.html Mailing List, Third Party Advisory
https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/ Third Party Advisory
https://security.gentoo.org/glsa/201903-10 Third 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-4348 Third Party Advisory
https://www.debian.org/security/2018/dsa-4355 Third Party Advisory
https://www.exploit-db.com/exploits/45785/ Exploit, Third Party Advisory, VDB Entry
https://www.oracle.com/security-alerts/cpuapr2020.html Patch, Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2020.html Patch, Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html Patch, Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html Patch, Vendor Advisory
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html Patch, Third Party Advisory
https://www.tenable.com/security/tns-2018-16 Third Party Advisory
https://www.tenable.com/security/tns-2018-17 Third Party Advisory