CVE-2018-21029

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

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)

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-295

Affected software

No affected versions have been published.

Timeline

Published: Oct 30, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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