CVE-2020-8621
CVE-2020-8621 · Attempting QNAME minimization after forwarding can lead to an assertion failure in resolver.c
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
In BIND 9.14.0 -> 9.16.5, 9.17.0 -> 9.17.3, If a server is configured with both QNAME minimization and 'forward first' then an attacker who can send queries to it may be able to trigger the condition that will cause the server to crash. Servers that 'forward only' are not affected.
CVSS 7.5 · Alta · EPSS 3,0% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: system
Productos y versiones afectados
bind9
- Versiones
- ≥ 9.14.0: Afectada; ≥ 9.16.6: No afectada; ≥ 9.17.0: Afectada; ≥ 9.17.4: No afectada (custom)
Actualiza a 9.16.6
bind9 Debian:12
- Intervalos de versiones afectados
- ECOSYSTEM: < 1:9.16.6-1
Actualiza a 1:9.16.6-1
bind9 Debian:13
- Intervalos de versiones afectados
- ECOSYSTEM: < 1:9.16.6-1
Actualiza a 1:9.16.6-1
bind9 Debian:14
- Intervalos de versiones afectados
- ECOSYSTEM: < 1:9.16.6-1
Actualiza a 1:9.16.6-1
bind9 Ubuntu:20.04:LTS
- Versiones
- 1:9.11.5.P4+dfsg-5.1ubuntu2
- 1:9.11.5.P4+dfsg-5.1ubuntu3
- 1:9.11.5.P4+dfsg-5.1ubuntu4
- 1:9.11.5.P4+dfsg-5.1ubuntu5
- 1:9.11.14+dfsg-1ubuntu1
- 1:9.11.14+dfsg-3ubuntu1
- 1:9.16.0-1ubuntu3
- 1:9.16.0-1ubuntu4
- 1:9.16.0-1ubuntu5
- 1:9.16.1-0ubuntu1
- 1:9.16.1-0ubuntu2
- 1:9.16.1-0ubuntu2.1
- 1:9.16.1-0ubuntu2.2
- Intervalos de versiones afectados
- ECOSYSTEM: < 1:9.16.1-0ubuntu2.3
Actualiza a 1:9.16.1-0ubuntu2.3
Fuentes originales
- https://kb.isc.org/docs/cve-2020-8621
- https://security.netapp.com/advisory/ntap-20200827-0003/
- https://usn.ubuntu.com/4468-1/
- https://security.gentoo.org/glsa/202008-19
- https://www.synology.com/security/advisory/Synology_SA_20_19
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html
- https://nvd.nist.gov/vuln/detail/CVE-2020-8621