CVE-2018-21029
- State
- Published
- Severity
- Not scored
- Published
- Oct 30, 2019
- Updated
- Aug 5, 2024
- Reserved
- Oct 30, 2019
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)
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://github.com/systemd/systemd/issues/9397
- https://blog.cloudflare.com/dns-encryption-explained/
- https://github.com/systemd/systemd/blob/v243/src/resolve/resolved-dnstls-gnutls.c#L62-L63
- FEDORA-2019-4c3ce3aa5cvendor-advisory
- https://security.netapp.com/advisory/ntap-20191122-0002/
- https://github.com/systemd/systemd/pull/13870
- https://github.com/systemd/systemd/blob/v243/man/resolved.conf.xml#L196-L207
- https://github.com/systemd/systemd/blob/v239/man/resolved.conf.xml#L199-L207
- https://tools.ietf.org/html/rfc7858#section-4.1
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