| 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, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| References | DLA-1586-1, DSA-4348-1, DSA-4355-1 |
| NVD severity | low (attack range: local) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| openssl (PTS) | jessie | 1.0.1t-1+deb8u8 | vulnerable |
| jessie (security) | 1.0.1t-1+deb8u10 | fixed | |
| stretch | 1.1.0f-3+deb9u2 | vulnerable | |
| stretch (security) | 1.1.0j-1~deb9u1 | fixed | |
| buster, sid | 1.1.1a-1 | fixed | |
| openssl1.0 (PTS) | stretch | 1.0.2l-2+deb9u3 | vulnerable |
| stretch (security) | 1.0.2q-1~deb9u1 | fixed | |
| sid | 1.0.2q-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| openssl | source | (unstable) | 1.1.1~~pre9-1 | low | ||
| openssl | source | jessie | 1.0.1t-1+deb8u10 | low | DLA-1586-1 | |
| openssl | source | stretch | 1.1.0j-1~deb9u1 | low | DSA-4348-1 | |
| openssl1.0 | source | (unstable) | 1.0.2q-1 | low | ||
| openssl1.0 | source | stretch | 1.0.2q-1~deb9u1 | low | DSA-4355-1 |
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.