| Name | CVE-2018-5407 |
| 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'. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-1586-1, DSA-4348-1, DSA-4355-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| openssl (PTS) | buster | 1.1.1n-0+deb10u3 | fixed |
| buster (security) | 1.1.1n-0+deb10u6 | fixed |
| bullseye | 1.1.1n-0+deb11u4 | fixed |
| bullseye (security) | 1.1.1n-0+deb11u5 | fixed |
| bookworm | 3.0.9-1 | fixed |
| sid, trixie | 3.0.11-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://www.openssl.org/news/secadv/20181112.txt
OpenSSL_1_0_2-stable: https://git.openssl.org/?p=openssl.git;a=commit;h=b18162a7c9bbfb57112459a4d6631fa258fd8c0c
https://www.openwall.com/lists/oss-security/2018/11/01/4
https://github.com/bbbrumley/portsmash
This is not an issue in software but in a hardware issue. Issue can be
mitigated e.g. for OpenSSL.