CVE-2018-5407
MEDIUM 4.7EPSS 3.4%
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'.
- Affected
- Processors supporting Simultaneous Multi-Threading
- CVSS v3.1 NVD
- 4.7 MEDIUM
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS v2.0 NVD
- 1.9 LOW
AV:L/AC:M/Au:N/C:P/I:N/A:N - EPSS
- 3.42% chance of exploitation in the next 30 days, 89th percentile
- Published
- 2018-11-15
- Updated
- 2026-10-08
Proof-of-concept exploits (1)
- bbbrumley/portsmash471★ · 2024-11-20
ExploitDB entries (1)
Security advisories
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
- http://www.securityfocus.com/bid/105897
- https://access.redhat.com/errata/RHSA-2019:0483
- https://access.redhat.com/errata/RHSA-2019:0651
- https://access.redhat.com/errata/RHSA-2019:0652
- https://access.redhat.com/errata/RHSA-2019:2125
- https://access.redhat.com/errata/RHSA-2019:3929
- https://access.redhat.com/errata/RHSA-2019:3931
- https://access.redhat.com/errata/RHSA-2019:3932
- https://access.redhat.com/errata/RHSA-2019:3933
- https://access.redhat.com/errata/RHSA-2019:3935
- https://eprint.iacr.org/2018/1060.pdf
- https://lists.debian.org/debian-lts-announce/2018/11/msg00024.html
- https://nodejs.org/en/blog/vulnerability/november-2018-security-releases
- https://security.gentoo.org/glsa/201903-10
- https://security.netapp.com/advisory/ntap-20181126-0001
- https://usn.ubuntu.com/3840-1
- https://www.debian.org/security/2018/dsa-4348
- https://www.debian.org/security/2018/dsa-4355
- https://www.oracle.com/security-alerts/cpuapr2020.html
- https://www.oracle.com/security-alerts/cpujan2020.html
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
- https://www.tenable.com/security/tns-2018-16
- https://www.tenable.com/security/tns-2018-17