| Name | CVE-2018-21029 |
| Description | systemd 239 through 243 accepts any certificate signed by a trusted certificate authority for DNS Over TLS. Server Name Indication (SNI) is not sent, and there is no hostname validation with the GnuTLS backend. |
| 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) |
| NVD severity | high |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| systemd (PTS) | jessie | 215-17+deb8u7 | fixed |
| jessie (security) | 215-17+deb8u13 | fixed |
| stretch | 232-25+deb9u12 | fixed |
| stretch (security) | 232-25+deb9u11 | fixed |
| buster | 241-7~deb10u2 | vulnerable |
| bullseye, sid | 243-7 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| systemd | source | (unstable) | (unfixed) | | | |
| systemd | source | jessie | (not affected) | | | |
| systemd | source | stretch | (not affected) | | | |
Notes
[buster] - systemd <no-dsa> (Minor issue; systemd-resolved not enabled by default)
[stretch] - systemd <not-affected> (Vulnerable code introduced later)
[jessie] - systemd <not-affected> (Vulnerable code introduced later)
https://github.com/systemd/systemd/issues/9397