CVE-2018-21029
CVE-2018-21029
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
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)
CVSS 9.8 · Crítica · EPSS 3,1% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: system
Productos y versiones afectados
n/a
- Versiones
- n/a: Afectada
Sin corrección publicada
systemd Debian:12
- Intervalos de versiones afectados
- ECOSYSTEM: < 244-1
Actualiza a 244-1
systemd Debian:13
- Intervalos de versiones afectados
- ECOSYSTEM: < 244-1
Actualiza a 244-1
systemd Debian:14
- Intervalos de versiones afectados
- ECOSYSTEM: < 244-1
Actualiza a 244-1
Fuentes originales
- 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
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4NLJVOJMB6ANDILRLDZK26YGLYBEPHKY/
- 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
- https://nvd.nist.gov/vuln/detail/CVE-2018-21029