Information disclosure in Processors supporting Simultaneous Multi-Threading
Priority LOW 28CWE-200Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Partial Red Hat: 20 fixed, 8 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-200.
Summary
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'.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.03418 88th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by the CNA and NVD
Fix Partial Red Hat: 7 advisoriesRed Hat: 20 fixed, 8 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| N/A | Processors supporting Simultaneous Multi-Threading | N/A | — | No fix listed | CNA |
- Processors supporting Simultaneous Multi-Threading VendorN/A Affected N/A Fixed in — No fix listed CNA
CPE configurations NVD · 37
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | 14.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | 16.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | 18.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* | 18.10 | Vulnerable | Canonical |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:* | before 6.14.4; 8.0.0 to before 8.11.4; 10.0.0 to before 10.9.0 | Vulnerable | NodeJS |
| cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* | 1.0.2 to before 1.0.2q; 1.1.0 to before 1.1.0i | Vulnerable | OpenSSL |
| cpe:2.3:a:tenable:nessus:*:*:*:*:*:*:*:* | before 8.1.1 | Vulnerable | Tenable |
| cpe:2.3:a:oracle:api_gateway:11.1.2.4.0:*:*:*:*:*:*:* | 11.1.2.4.0 | Vulnerable | Oracle |
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* Versions 18.10 Vulnerable ·Canonical
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:* Versions before 6.14.4; 8.0.0 to before 8.11.4; 10.0.0 to before 10.9.0 Vulnerable ·NodeJS
- cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* Versions 1.0.2 to before 1.0.2q; 1.1.0 to before 1.1.0i Vulnerable ·OpenSSL
- cpe:2.3:a:tenable:nessus:*:*:*:*:*:*:*:* Versions before 8.1.1 Vulnerable ·Tenable
- cpe:2.3:a:oracle:api_gateway:11.1.2.4.0:*:*:*:*:*:*:* Versions 11.1.2.4.0 Vulnerable ·Oracle
Show 27 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:oracle:application_server:0.9.8:*:*:*:*:*:*:* | 0.9.8 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:application_server:1.0.0:*:*:*:*:*:*:* | 1.0.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:application_server:1.0.1:*:*:*:*:*:*:* | 1.0.1 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:enterprise_manager_base_platform:12.1.0.5.0:*:*:*:*:*:*:* | 12.1.0.5.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:enterprise_manager_base_platform:13.2.0.0.0:*:*:*:*:*:*:* | 13.2.0.0.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:enterprise_manager_base_platform:13.3.0.0.0:*:*:*:*:*:*:* | 13.3.0.0.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:enterprise_manager_ops_center:12.3.3:*:*:*:*:*:*:* | 12.3.3 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:mysql_enterprise_backup:*:*:*:*:*:*:*:* | up to 3.12.3; 3.12.4 – 4.1.2 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.55:*:*:*:*:*:*:* | 8.55 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.56:*:*:*:*:*:*:* | 8.56 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:* | 8.57 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:*:*:*:*:*:*:*:* | 17.7 – 17.12 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:8.4:*:*:*:*:*:*:* | 8.4 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:15.1:*:*:*:*:*:*:* | 15.1 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:15.2:*:*:*:*:*:*:* | 15.2 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:16.1:*:*:*:*:*:*:* | 16.1 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:16.2:*:*:*:*:*:*:* | 16.2 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:18.8:*:*:*:*:*:*:* | 18.8 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:tuxedo:12.1.1.0.0:*:*:*:*:*:*:* | 12.1.1.0.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:vm_virtualbox:*:*:*:*:*:*:*:* | before 6.0.0 | Vulnerable | Oracle |
| cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server:7.6:*:*:*:*:*:*:* | 7.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* | 7.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* | 7.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* | 7.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
- cpe:2.3:a:oracle:application_server:0.9.8:*:*:*:*:*:*:* Versions 0.9.8 Vulnerable ·Oracle
- cpe:2.3:a:oracle:application_server:1.0.0:*:*:*:*:*:*:* Versions 1.0.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:application_server:1.0.1:*:*:*:*:*:*:* Versions 1.0.1 Vulnerable ·Oracle
- cpe:2.3:a:oracle:enterprise_manager_base_platform:12.1.0.5.0:*:*:*:*:*:*:* Versions 12.1.0.5.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:enterprise_manager_base_platform:13.2.0.0.0:*:*:*:*:*:*:* Versions 13.2.0.0.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:enterprise_manager_base_platform:13.3.0.0.0:*:*:*:*:*:*:* Versions 13.3.0.0.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:enterprise_manager_ops_center:12.3.3:*:*:*:*:*:*:* Versions 12.3.3 Vulnerable ·Oracle
- cpe:2.3:a:oracle:mysql_enterprise_backup:*:*:*:*:*:*:*:* Versions up to 3.12.3; 3.12.4 – 4.1.2 Vulnerable ·Oracle
- cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.55:*:*:*:*:*:*:* Versions 8.55 Vulnerable ·Oracle
- cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.56:*:*:*:*:*:*:* Versions 8.56 Vulnerable ·Oracle
- cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:* Versions 8.57 Vulnerable ·Oracle
- cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:*:*:*:*:*:*:*:* Versions 17.7 – 17.12 Vulnerable ·Oracle
- cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:8.4:*:*:*:*:*:*:* Versions 8.4 Vulnerable ·Oracle
- cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·Oracle
- cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:15.2:*:*:*:*:*:*:* Versions 15.2 Vulnerable ·Oracle
- cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:16.1:*:*:*:*:*:*:* Versions 16.1 Vulnerable ·Oracle
- cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:16.2:*:*:*:*:*:*:* Versions 16.2 Vulnerable ·Oracle
- cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:18.8:*:*:*:*:*:*:* Versions 18.8 Vulnerable ·Oracle
- cpe:2.3:a:oracle:tuxedo:12.1.1.0.0:*:*:*:*:*:*:* Versions 12.1.1.0.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:vm_virtualbox:*:*:*:*:*:*:*:* Versions before 6.0.0 Vulnerable ·Oracle
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
Remediation
Red Hat 7 advisories
- RHSA-2019:3932 Released 2019-11-20 · Red Hat rating ImportantRed Hat JBoss Core Services Apache HTTP Server 2.4.37 Security Release on RHEL 6
- Red Hat JBoss Core Services on RHEL 6 Server jbcs-httpd24-apr-1.6.3-63.jbcs.el6, jbcs-httpd24-apr-devel-1.6.3-63.jbcs.el6, jbcs-httpd24-apr-util-1.6.1-48.jbcs.el6 +37
- RHSA-2019:3933 Released 2019-11-20 · Red Hat rating ImportantRed Hat JBoss Core Services Apache HTTP Server 2.4.37 Security Release on RHEL 7
- Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-apr-1.6.3-63.jbcs.el7, jbcs-httpd24-apr-devel-1.6.3-63.jbcs.el7, jbcs-httpd24-apr-util-1.6.1-48.jbcs.el7 +37
- RHSA-2019:3929 Released 2019-11-20 · Red Hat rating ImportantRed Hat JBoss Web Server 5.2 security release
- Red Hat JBoss Web Server 5.2 for RHEL 6 Server jws5-ecj-4.12.0-1.redhat_1.1.el6jws, jws5-javapackages-tools-3.4.1-5.15.11.el6jws, jws5-jboss-logging-3.3.2-1.Final_redhat_00001.1.el6jws +16
- Red Hat JBoss Web Server 5.2 for RHEL 7 Server jws5-ecj-4.12.0-1.redhat_1.1.el7jws, jws5-javapackages-tools-3.4.1-5.15.11.el7jws, jws5-jboss-logging-3.3.2-1.Final_redhat_00001.1.el7jws +16
- Red Hat JBoss Web Server 5.2 for RHEL 8 jws5-ecj-4.12.0-1.redhat_1.1.el8jws, jws5-javapackages-tools-3.4.1-5.15.11.el8jws, jws5-jboss-logging-3.3.2-1.Final_redhat_00001.1.el8jws +16
Show 4 more Red Hat advisories
- RHSA-2019:3935 Released 2019-11-20 · Red Hat rating ImportantRed Hat JBoss Core Services Apache HTTP Server 2.4.37 Security Release
- Red Hat JBoss Core Services
- RHSA-2019:3931 Released 2019-11-20 · Red Hat rating ImportantRed Hat JBoss Web Server 5.2 security release
- Red Hat JBoss Web Server 5
- RHSA-2019:2125 Released 2019-08-06 · Red Hat rating Moderateovmf security and enhancement update
- Red Hat Enterprise Linux Server (v. 7) OVMF-20180508-6.gitee3198e672e2.el7, ovmf-20180508-6.gitee3198e672e2.el7
- RHSA-2019:0483 Released 2019-03-13 · Red Hat rating Moderateopenssl security and bug fix update
- Red Hat Enterprise Linux Client (v. 7) openssl-1:1.0.2k-16.el7_6.1, openssl-libs-1:1.0.2k-16.el7_6.1
- Red Hat Enterprise Linux Client Optional (v. 7) openssl-devel-1:1.0.2k-16.el7_6.1, openssl-perl-1:1.0.2k-16.el7_6.1, openssl-static-1:1.0.2k-16.el7_6.1
- Red Hat Enterprise Linux ComputeNode (v. 7) openssl-1:1.0.2k-16.el7_6.1, openssl-libs-1:1.0.2k-16.el7_6.1
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) openssl-devel-1:1.0.2k-16.el7_6.1, openssl-perl-1:1.0.2k-16.el7_6.1, openssl-static-1:1.0.2k-16.el7_6.1
- Red Hat Enterprise Linux Server (v. 7) openssl-1:1.0.2k-16.el7_6.1, openssl-devel-1:1.0.2k-16.el7_6.1, openssl-devel-1:1.0.2k-16.el7_6.1.ppc +2
- Red Hat Enterprise Linux Server Optional (v. 7) openssl-perl-1:1.0.2k-16.el7_6.1, openssl-static-1:1.0.2k-16.el7_6.1, openssl-static-1:1.0.2k-16.el7_6.1.ppc
- Red Hat Enterprise Linux Workstation (v. 7) openssl-1:1.0.2k-16.el7_6.1, openssl-devel-1:1.0.2k-16.el7_6.1, openssl-libs-1:1.0.2k-16.el7_6.1
- Red Hat Enterprise Linux Workstation Optional (v. 7) openssl-perl-1:1.0.2k-16.el7_6.1, openssl-static-1:1.0.2k-16.el7_6.1
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) openssl-1:1.0.2k-16.el7_6.1, openssl-devel-1:1.0.2k-16.el7_6.1, openssl-libs-1:1.0.2k-16.el7_6.1
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) openssl-perl-1:1.0.2k-16.el7_6.1, openssl-static-1:1.0.2k-16.el7_6.1
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Will not fix |
| Red Hat JBoss Enterprise Application Platform 5 | Affected | No fix planned: Will not fix |
| Red Hat JBoss Enterprise Application Platform 6 | Affected | No fix planned: Will not fix |
| Red Hat JBoss Enterprise Web Server 2 | Affected | No fix planned: Will not fix |
| Red Hat JBoss Web Server 3 | Affected | No fix planned: Will not fix |
| RHEL 7-based RHEV-H for RHEV 4 (build requirements) | Fixed | — |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2019:0483 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2019:0483 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2019:0483 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2019:0483 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2019:0483, RHSA-2019:2125 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2019:0483 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2019:0483 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2019:0483 |
| Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) | Fixed | RHSA-2019:0483 |
| Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) | Fixed | RHSA-2019:0483 |
| Red Hat JBoss Core Services | Fixed | RHSA-2019:3935 |
| Red Hat JBoss Core Services on RHEL 6 Server | Fixed | RHSA-2019:3932 |
| Red Hat JBoss Core Services on RHEL 7 Server | Fixed | RHSA-2019:3933 |
| Red Hat JBoss Web Server 5 | Fixed | RHSA-2019:3931 |
| Red Hat JBoss Web Server 5.2 for RHEL 6 Server | Fixed | RHSA-2019:3929 |
| Red Hat JBoss Web Server 5.2 for RHEL 7 Server | Fixed | RHSA-2019:3929 |
| Red Hat JBoss Web Server 5.2 for RHEL 8 | Fixed | RHSA-2019:3929 |
| Red Hat Virtualization 4 Hypervisor for RHEL 7 | Fixed | — |
| Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts | Fixed | — |
Not affected: 1 product
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2018-5407
- 2026-10-03 Alias added: GHSA-3rjg-j575-7f6p
- 2026-10-08 CISA SSVC decision points changed
References
Patch 5
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
- https://www.oracle.com/security-alerts/cpujan2020.html
- https://www.oracle.com/security-alerts/cpuapr2020.html
Advisory 19
- RHSA-2019:0483
- https://security.netapp.com/advisory/ntap-20181126-0001/
- USN-3840-1
- DSA-4355
- https://www.tenable.com/security/tns-2018-17
- https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/
- GLSA-201903-10
- https://www.tenable.com/security/tns-2018-16
- [debian-lts-announce] 20181121 [SECURITY] [DLA 1586-1] openssl security update
- DSA-4348
- https://eprint.iacr.org/2018/1060.pdf
- RHSA-2019:0651
- RHSA-2019:0652
- RHSA-2019:2125
- RHSA-2019:3929
- RHSA-2019:3933
- RHSA-2019:3931
- RHSA-2019:3935
- RHSA-2019:3932
Sources
- CVE-2018-5407 · CVE Program
- CVE-2018-5407 · NVD
- FIRST EPSS
- GHSA-3rjg-j575-7f6p · GitHub Advisory Database · CC BY 4.0
- CVE-2018-5407 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences