CVE-2018-21029

Name	CVE-2018-21029
Description	DISPUTED systemd 239 through 245 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. NOTE: This has been disputed by the developer as not a vulnerability since hostname validation does not have anything to do with this issue (i.e. there is no hostname to be sent).
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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
systemd (PTS)	stretch	232-25+deb9u12	fixed
	stretch (security)	232-25+deb9u13	fixed
	buster, buster (security)	241-7~deb10u8	fixed
	bullseye	247.3-7	fixed
	bookworm, sid	250.4-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency
systemd	source	jessie	(not affected)
systemd	source	stretch	(not affected)
systemd	source	buster	(not affected)
systemd	source	(unstable)	244-1	low

Notes

[buster] - systemd <not-affected> (Only affected v243)
[stretch] - systemd <not-affected> (Only affected v243)
[jessie] - systemd <not-affected> (Only affected v243)
https://github.com/systemd/systemd/issues/9397