CVE-2018-21029

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)
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 81%
Affected Products (NVD)
VendorProductVersion
systemd_projectsystemd
239 ≤
𝑥
< 244
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
systemd
bookworm
252.30-1~deb12u2
fixed
bullseye
247.3-7+deb11u5
fixed
bullseye (security)
247.3-7+deb11u6
fixed
buster
not-affected
jessie
not-affected
sid
256.7-3
fixed
stretch
not-affected
trixie
256.7-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
systemd
bionic
not-affected
disco
ignored
eoan
not-affected
trusty
not-affected
xenial
not-affected
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
libsystemd0
suse enterprise desktop 15 SP3
246.13-5.1
fixed
suse enterprise desktop 15 SP4
249.11-150400.6.8
fixed
suse enterprise desktop 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise desktop 15 SP6
254.10-150600.2.3
fixed
suse enterprise desktop 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise sap 15 SP3
246.13-5.1
fixed
suse enterprise sap 15 SP4
249.11-150400.6.8
fixed
suse enterprise sap 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise sap 15 SP6
254.10-150600.2.3
fixed
suse enterprise sap 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise server 15 SP3
246.13-5.1
fixed
suse enterprise server 15 SP4
249.11-150400.6.8
fixed
suse enterprise server 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise server 15 SP6
254.10-150600.2.3
fixed
suse enterprise server 15 SP7
254.24-150600.4.28.1
fixed
libsystemd0-32bit
suse enterprise desktop 15 SP3
246.13-5.1
fixed
suse enterprise desktop 15 SP4
249.11-150400.6.8
fixed
suse enterprise desktop 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise desktop 15 SP6
254.10-150600.2.3
fixed
suse enterprise desktop 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise sap 15 SP3
246.13-5.1
fixed
suse enterprise sap 15 SP4
249.11-150400.6.8
fixed
suse enterprise sap 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise sap 15 SP6
254.10-150600.2.3
fixed
suse enterprise sap 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise server 15 SP3
246.13-5.1
fixed
suse enterprise server 15 SP4
249.11-150400.6.8
fixed
suse enterprise server 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise server 15 SP6
254.10-150600.2.3
fixed
suse enterprise server 15 SP7
254.24-150600.4.28.1
fixed
libudev-devel
suse enterprise desktop 15 SP3
246.13-5.1
fixed
suse enterprise sap 15 SP3
246.13-5.1
fixed
suse enterprise server 15 SP3
246.13-5.1
fixed
libudev1
suse enterprise desktop 15 SP3
246.13-5.1
fixed
suse enterprise desktop 15 SP4
249.11-150400.6.8
fixed
suse enterprise desktop 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise desktop 15 SP6
254.10-150600.2.3
fixed
suse enterprise desktop 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise sap 15 SP3
246.13-5.1
fixed
suse enterprise sap 15 SP4
249.11-150400.6.8
fixed
suse enterprise sap 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise sap 15 SP6
254.10-150600.2.3
fixed
suse enterprise sap 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise server 15 SP3
246.13-5.1
fixed
suse enterprise server 15 SP4
249.11-150400.6.8
fixed
suse enterprise server 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise server 15 SP6
254.10-150600.2.3
fixed
suse enterprise server 15 SP7
254.24-150600.4.28.1
fixed
libudev1-32bit
suse enterprise desktop 15 SP3
246.13-5.1
fixed
suse enterprise desktop 15 SP4
249.11-150400.6.8
fixed
suse enterprise desktop 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise desktop 15 SP6
254.10-150600.2.3
fixed
suse enterprise desktop 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise sap 15 SP3
246.13-5.1
fixed
suse enterprise sap 15 SP4
249.11-150400.6.8
fixed
suse enterprise sap 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise sap 15 SP6
254.10-150600.2.3
fixed
suse enterprise sap 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise server 15 SP3
246.13-5.1
fixed
suse enterprise server 15 SP4
249.11-150400.6.8
fixed
suse enterprise server 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise server 15 SP6
254.10-150600.2.3
fixed
suse enterprise server 15 SP7
254.24-150600.4.28.1
fixed
systemd
suse enterprise desktop 15 SP3
246.13-5.1
fixed
suse enterprise desktop 15 SP4
249.11-150400.6.8
fixed
suse enterprise desktop 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise desktop 15 SP6
254.10-150600.2.3
fixed
suse enterprise desktop 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise sap 15 SP3
246.13-5.1
fixed
suse enterprise sap 15 SP4
249.11-150400.6.8
fixed
suse enterprise sap 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise sap 15 SP6
254.10-150600.2.3
fixed
suse enterprise sap 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise server 15 SP3
246.13-5.1
fixed
suse enterprise server 15 SP4
249.11-150400.6.8
fixed
suse enterprise server 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise server 15 SP6
254.10-150600.2.3
fixed
suse enterprise server 15 SP7
254.24-150600.4.28.1
fixed
systemd-32bit
suse enterprise desktop 15 SP3
246.13-5.1
fixed
suse enterprise desktop 15 SP4
249.11-150400.6.8
fixed
suse enterprise desktop 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise desktop 15 SP6
254.10-150600.2.3
fixed
suse enterprise desktop 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise sap 15 SP3
246.13-5.1
fixed
suse enterprise sap 15 SP4
249.11-150400.6.8
fixed
suse enterprise sap 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise sap 15 SP6
254.10-150600.2.3
fixed
suse enterprise sap 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise server 15 SP3
246.13-5.1
fixed
suse enterprise server 15 SP4
249.11-150400.6.8
fixed
suse enterprise server 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise server 15 SP6
254.10-150600.2.3
fixed
suse enterprise server 15 SP7
254.24-150600.4.28.1
fixed
systemd-container
suse enterprise desktop 15 SP3
246.13-5.1
fixed
suse enterprise desktop 15 SP4
249.11-150400.6.8
fixed
suse enterprise desktop 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise desktop 15 SP6
254.10-150600.2.3
fixed
suse enterprise desktop 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise sap 15 SP3
246.13-5.1
fixed
suse enterprise sap 15 SP4
249.11-150400.6.8
fixed
suse enterprise sap 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise sap 15 SP6
254.10-150600.2.3
fixed
suse enterprise sap 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise server 15 SP3
246.13-5.1
fixed
suse enterprise server 15 SP4
249.11-150400.6.8
fixed
suse enterprise server 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise server 15 SP6
254.10-150600.2.3
fixed
suse enterprise server 15 SP7
254.24-150600.4.28.1
fixed
systemd-coredump
suse enterprise desktop 15 SP3
246.13-5.1
fixed
suse enterprise desktop 15 SP4
249.11-150400.6.8
fixed
suse enterprise desktop 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise desktop 15 SP6
254.10-150600.2.3
fixed
suse enterprise desktop 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise sap 15 SP3
246.13-5.1
fixed
suse enterprise sap 15 SP4
249.11-150400.6.8
fixed
suse enterprise sap 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise sap 15 SP6
254.10-150600.2.3
fixed
suse enterprise sap 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise server 15 SP3
246.13-5.1
fixed
suse enterprise server 15 SP4
249.11-150400.6.8
fixed
suse enterprise server 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise server 15 SP6
254.10-150600.2.3
fixed
suse enterprise server 15 SP7
254.24-150600.4.28.1
fixed
systemd-devel
suse enterprise desktop 15 SP3
246.13-5.1
fixed
suse enterprise desktop 15 SP4
249.11-150400.6.8
fixed
suse enterprise desktop 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise desktop 15 SP6
254.10-150600.2.3
fixed
suse enterprise desktop 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise sap 15 SP3
246.13-5.1
fixed
suse enterprise sap 15 SP4
249.11-150400.6.8
fixed
suse enterprise sap 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise sap 15 SP6
254.10-150600.2.3
fixed
suse enterprise sap 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise server 15 SP3
246.13-5.1
fixed
suse enterprise server 15 SP4
249.11-150400.6.8
fixed
suse enterprise server 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise server 15 SP6
254.10-150600.2.3
fixed
suse enterprise server 15 SP7
254.24-150600.4.28.1
fixed
systemd-doc
suse enterprise desktop 15 SP3
246.13-5.1
fixed
suse enterprise desktop 15 SP4
249.11-150400.6.8
fixed
suse enterprise desktop 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise desktop 15 SP6
254.10-150600.2.3
fixed
suse enterprise desktop 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise sap 15 SP3
246.13-5.1
fixed
suse enterprise sap 15 SP4
249.11-150400.6.8
fixed
suse enterprise sap 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise sap 15 SP6
254.10-150600.2.3
fixed
suse enterprise sap 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise server 15 SP3
246.13-5.1
fixed
suse enterprise server 15 SP4
249.11-150400.6.8
fixed
suse enterprise server 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise server 15 SP6
254.10-150600.2.3
fixed
suse enterprise server 15 SP7
254.24-150600.4.28.1
fixed
systemd-journal-remote
suse enterprise desktop 15 SP3
246.13-5.1
fixed
suse enterprise sap 15 SP3
246.13-5.1
fixed
suse enterprise server 15 SP3
246.13-5.1
fixed
systemd-lang
suse enterprise desktop 15 SP3
246.13-5.1
fixed
suse enterprise desktop 15 SP4
249.11-150400.6.8
fixed
suse enterprise desktop 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise desktop 15 SP6
254.10-150600.2.3
fixed
suse enterprise desktop 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise sap 15 SP3
246.13-5.1
fixed
suse enterprise sap 15 SP4
249.11-150400.6.8
fixed
suse enterprise sap 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise sap 15 SP6
254.10-150600.2.3
fixed
suse enterprise sap 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise server 15 SP3
246.13-5.1
fixed
suse enterprise server 15 SP4
249.11-150400.6.8
fixed
suse enterprise server 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise server 15 SP6
254.10-150600.2.3
fixed
suse enterprise server 15 SP7
254.24-150600.4.28.1
fixed
systemd-sysvcompat
suse enterprise desktop 15 SP6
254.10-150600.2.3
fixed
suse enterprise desktop 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise sap 15 SP6
254.10-150600.2.3
fixed
suse enterprise sap 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise server 15 SP6
254.10-150600.2.3
fixed
suse enterprise server 15 SP7
254.24-150600.4.28.1
fixed
systemd-sysvinit
suse enterprise desktop 15 SP3
246.13-5.1
fixed
suse enterprise desktop 15 SP4
249.11-150400.6.8
fixed
suse enterprise desktop 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise sap 15 SP3
246.13-5.1
fixed
suse enterprise sap 15 SP4
249.11-150400.6.8
fixed
suse enterprise sap 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise server 15 SP3
246.13-5.1
fixed
suse enterprise server 15 SP4
249.11-150400.6.8
fixed
suse enterprise server 15 SP5
249.16-150400.8.25.7
fixed
udev
suse enterprise desktop 15 SP3
246.13-5.1
fixed
suse enterprise desktop 15 SP4
249.11-150400.6.8
fixed
suse enterprise desktop 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise desktop 15 SP6
254.10-150600.2.3
fixed
suse enterprise desktop 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise sap 15 SP3
246.13-5.1
fixed
suse enterprise sap 15 SP4
249.11-150400.6.8
fixed
suse enterprise sap 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise sap 15 SP6
254.10-150600.2.3
fixed
suse enterprise sap 15 SP7
254.24-150600.4.28.1
fixed
suse enterprise server 15 SP3
246.13-5.1
fixed
suse enterprise server 15 SP4
249.11-150400.6.8
fixed
suse enterprise server 15 SP5
249.16-150400.8.25.7
fixed
suse enterprise server 15 SP6
254.10-150600.2.3
fixed
suse enterprise server 15 SP7
254.24-150600.4.28.1
fixed
Common Weakness Enumeration
References
https://blog.cloudflare.com/dns-encryption-explained/
https://github.com/systemd/systemd/blob/v239/man/resolved.conf.xml#L199-L207
https://github.com/systemd/systemd/blob/v243/man/resolved.conf.xml#L196-L207
https://github.com/systemd/systemd/blob/v243/src/resolve/resolved-dnstls-gnutls.c#L62-L63
https://github.com/systemd/systemd/issues/9397
https://github.com/systemd/systemd/pull/13870
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4NLJVOJMB6ANDILRLDZK26YGLYBEPHKY/
https://security.netapp.com/advisory/ntap-20191122-0002/
https://tools.ietf.org/html/rfc7858#section-4.1
https://blog.cloudflare.com/dns-encryption-explained/
https://github.com/systemd/systemd/blob/v239/man/resolved.conf.xml#L199-L207
https://github.com/systemd/systemd/blob/v243/man/resolved.conf.xml#L196-L207
https://github.com/systemd/systemd/blob/v243/src/resolve/resolved-dnstls-gnutls.c#L62-L63
https://github.com/systemd/systemd/issues/9397
https://github.com/systemd/systemd/pull/13870
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4NLJVOJMB6ANDILRLDZK26YGLYBEPHKY/
https://security.netapp.com/advisory/ntap-20191122-0002/
https://tools.ietf.org/html/rfc7858#section-4.1